Duck out late (4)
I believe the answer is:
teal
'duck' is the definition.
(teal is a kind of duck)
'out late' is the wordplay.
'out' indicates an anagram.
'late' with letters rearranged gives 'TEAL'.
(Other definitions for teal that I've seen before include "Type of duck" , "Strange tale of a duck" , "Raise (subject matter)" , "Duck; greenish-blue colour" , "Variety of duck" .)