'Not really enough info about the lens from your crop sensor. 'Likely AF, likely a 'G' (gelded - no aperture ring), but 7200 is not a full size sensor (I have 7100). That's gonna be the issue - do you get vignetting from too small an image circle 'cause it was made for DX instead of FX. If you have detail on the lens, it shouldn't be hard to find out. As an alternative, the Ken Rockwell site has alot of nikon lens reviews & if you find your lens there, it would be pretty clear if it'll carry the freight.
Best of luck w/ the portraiture.