Architect gets the bird (4)
I believe the answer is:
wren
I believe this is a double definition.
'architect' is the first definition.
(Sir Christopher Wren)
'the bird' is the second definition.
(wren is a kind of bird)
'gets' is the link.
(Other definitions for wren that I've seen before include "Tiny bird" , "Man of note" , "Architect of St Paul's Cathedral" , "Former RN woman" , "Farthing's emblem" .)