Poet at home after frolic (6)
I believe the answer is:
larkin
'poet' is the definition.
(Philip Larkin 1922-1985)
'home after frolic' is the wordplay.
'home' becomes 'in' ('he's home' can mean 'he's in').
'after' says to put letters next to each other.
'frolic' becomes 'lark' (synonyms).
'in' put after 'lark' is 'LARKIN'.
'at' acts as a link.
(Other definitions for larkin that I've seen before include "See 15" , "Philip ---, C twenty English poet" , "Coventry-born poet associated with Hull" , "Hull librarian and poet, d. 1985" , "English poet, d. 1985" .)