Sat (7)
'sat' is the definition.
(perching is a kind of sitting)
This is all the clue.
(Another definition for perched that I've seen is " Sat on a branch".)
'sat' is the definition.
('pose' can be a synonym of 'sit')
This is the entire clue.
(Other definitions for posed that I've seen before include "Assumed" , "Positioned" , "Arranged for pictorial purposes" , "Modelled" , "Was a model" .)