Perches for domestic fowl (6)
I believe the answer is:
roosts
'perches for domestic fowl' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for roosts that I've seen before include "Where birds settle to sleep" , "Perches for domestic fowl" , "where people settled?" , "Of bird, settles for sleep" , "Stays" .)