So bring round the day after, for a lark? (8)
I believe the answer is:
songbird
'for a lark?' is the definition.
(thesaurus)
'so bring round the day' is the wordplay.
'round' is an anagram indicator.
'the day' becomes 'd' (abbreviation for day).
'bring' anagrammed gives 'ngbir'.
'so'+'ngbir'+'d'='SONGBIRD'
'after' acts as a link.
(Other definitions for songbird that I've seen before include "Melodious avian" , "Nightingale, for example" , "Eg, warbler" , "Thrush or canary, say" , "I fly?" .)