Son with spicy photograph (4)
I believe the answer is:
shot
'photograph' is the definition.
(shot is a kind of photograph)
'son with spicy' is the wordplay.
'son' becomes 's' (genealogical abbreviation for son).
'with' says to put letters next to each other.
'spicy' becomes 'hot' (synonyms).
's'+'hot'='SHOT'
(Other definitions for shot that I've seen before include "Crack" , "Short drink; attempt" , "Lead pellet" , "small amount of booze" , "Small drink; photo" .)