Mostly good advice above.
I'd comment/ reinforce the following:
Lighting will emphasize actual texture (wrinkles). Filters and film's spectral sensitivity will emphasize tone, freckles, imperfections, veins, lips and micro contrast of the skin tone itself.
If it were me, soft light (skylight from window) at 3/4 direction, or hard (direct sunlight), near-frontal light that is not too high (later in the day). I prefer portraits with the key light in both eyes. People don't use hard light much anymore, but it was used almost exclusively for decades by cinematographers. You just have to be much more particular with the angle of the light. For my tastes, hard light is better suited for black and white than color, but that's just taste and preference.
If using soft light, +1 development may be indicated to maintain contrast and texture. If you get hard light just right, (fully in the eyes) you shouldn't need to pull development.
If choosing soft light, I'd personally remain close to the window, for maximum light output and "wrap," and compensate for the extra softness by extended film development. Further from the windows the key light does get harder, but starts looking blah and "dead". One good reason for this is the increased arbitrary ambient light in proportion to your key light, unless walls are painted dark.
If using soft light, "negative fill" is most probably indicated, especially if near a light wall. In cinematography we use black flags, but even a dark sheet taped to a wall will do in a pinch. Absorption of ambient light will darken all those wrinkles.
Ortho film would look fantastic if you have enough light. You likely don't unless your subject can rest comfortably and still with use of a tripod, or unless you use direct sunlight. With ortho, an appropriate developer is crucial to tame the excessive contrast. With Ilford Ortho, I've used Rodinal 1+100 with minimal agitation (every 3 min). There are also dilute pyrocatechin developers for this purpose.
If using panchromatic film, you can use green or blue to emphasize skin tone. Usually green is used, although I've used blue for more of a weathered, 19th century photographic skin tone look:
https://www.flickr.com/photos/18192666@N00/18477399810/in/datetaken-public/
A blue 47 filter sucks a lot of light, but at least the color of skylight makes it a bit more efficient. You'd still need Tri-X or HP5 for enough speed.
The more blue the light source, the more skin tone and micro contrast is emphasized when using soft light. (Hard light makes up for this with it's textural emphasis). It's like a filter. The spectrum of tungsten or incandescent light is much more flattering than skylight, for example, the former giving more of an alabaster look. If you use the sheet over the window trick that was advised above, a blue or green sheet will help emphasize tone.
Use a high-acutance developer. For me, that means either Rodinal, or even better, a pyrogallol or Pyrocatechin developer. I personally use WD2D+.
I hope this helps.
-Jarin