Female part of a flower (6)
I believe the answer is:
pistil
'female part of a flower' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for pistil that I've seen before include "Seed-producing part of a flower" , "Slip it over the flower part" , "Style in flower" , "Female organ in plant" , "This part of a flower sounds like a gun" .)