Part of body shown in photo, enlarged (3)
I believe the answer is:
toe
'part of body' is the definition.
'shown in photo enlarged' is the wordplay.
'shown in' indicates the answer is hidden within the clue.
'TOE' is hidden within 'photo enlarged'.
(Other definitions for toe that I've seen before include "Digit on foot" , "'Little piggy'" , "End of foot" , "Lower end or tip" , "Lower digit" .)