Perry maybe with plum as one ingredient (5)
I believe the answer is:
mason
'perry maybe' is the definition.
(fictional detective Perry Mason)
'with plum as one ingredient' is the wordplay.
'with' indicates a hidden word.
'MASON' can be found hidden inside 'plum as one ingredient'.
(Other definitions for mason that I've seen before include "US comedian" , "A skilled worker in stone" , "He works with stone - may be free" , "figure in lodge" , "one wearing an apron" .)