Bird present in pub left (4,3)
I believe the answer is:
barn owl
'bird' is the definition.
(barn owl is a kind of bird)
'present in pub left' is the wordplay.
'present' becomes 'now' (now is a kind of present).
'in' means one lot of letters goes inside another.
'pub' becomes 'bar' (I've seen this before).
'left' becomes 'l' (common abbreviation).
'bar'+'l'='barl'
'now' placed into 'barl' is 'BARN OWL'.
(Other definitions for barn owl that I've seen before include "Flier" , "Large bird of prey" , "Nocturnal bird native to Britain" , "Countryside bird" , "Night-flying raptor" .)