Live, accepting love – and prosper (2,4)
I believe the answer is:
do well
'prosper' is the definition.
(thesaurus)
'live accepting love' is the wordplay.
'live' becomes 'dwell' (synonyms).
'accepting' means one lot of letters goes inside another.
'love' becomes 'o' (love means zero in tennis).
'dwell' enclosing 'o' is 'DO WELL'.
'and' is the link.
(Other definitions for do well that I've seen before include "Flourish" , "boom" .)