Venerated party embraced by a left-winger (6)
I believe the answer is:
adored
'venerated' is the definition.
(thesaurus)
'party embraced by a left-winger' is the wordplay.
'party' becomes 'do' (do is a kind of party).
'embraced by' indicates putting letters inside.
'left-winger' becomes 'red' (red is a kind of left-winger).
'a'+'red'='ared'
'do' put inside 'ared' is 'ADORED'.
(Other definitions for adored that I've seen before include "enjoyed very much" , "Worshipped, loved" , "having lover" , "Idolised" , "hugely popular" .)