Till pout is awkward (2,2)
I believe the answer is:
up to
'till' is the definition.
(thesaurus)
'pout is awkward' is the wordplay.
'is awkward' is an anagram indicator.
'pout' with letters rearranged gives 'UP TO'.
(Other definitions for up to that I've seen before include "As far as a certain point" , "Incumbent upon" , "As far as or as many as" , "Busy with" , "Capable of" .)