Songbirds (5)
I think it could be either:
'songbirds' is the definition.
(I've seen this in another clue)
This is all the clue.
(Another definition for wrens that I've seen is " Small brown birds".)
'songbirds' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for larks that I've seen before include "Early birds" , "Flyers who tweet" , "Birds; fun" , "Cavorting" , "Fun and games" .)