Comb and comb and comb (5)
I believe the answer is:
preen
'comb and comb and comb' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for preen that I've seen before include "demonstrate pride" , "Vainly groom oneself" , "Groom with elaborate care" , "Dress with elaborate care" , "Groom (oneself) with evident vanity" .)