Funny fellow doctor? (7)
I believe the answer is:
comedic
'funny' is the definition.
(I've seen this before)
'fellow doctor?' is the wordplay.
'fellow' becomes 'co' (I've seen this in other clues).
'doctor?' becomes 'medic' (I've seen this before**).
'co'+'medic'='COMEDIC'
(Other definitions for comedic that I've seen before include "Like a joke" , "Humorous" , "Of humour" , "Funny, laughable" , "Amusing" .)