Bird inside a glebe-house is hiding (5)
I believe the answer is:
eagle
'bird' is the definition.
(eagle is a type of bird)
'inside a glebe-house is hiding' is the wordplay.
'is hiding' indicates a hidden word.
'EAGLE' is hidden within 'inside a glebe house'.
(Other definitions for eagle that I've seen before include "Bald, golden, bird" , "Symbolic American bird" , "Keen-sighted bird of prey" , "Bird - emblem of power" , "Raptor" .)