Overcome being pretentious (8)
I believe the answer is:
affected
I believe this is a double definition.
'overcome' is the first definition.
(thesaurus)
'pretentious' is the second definition.
(thesaurus)
'being' is the link.
(Other definitions for affected that I've seen before include "Given to posing, artificial in manner" , "False - unnatural" , "mincing?" , "Stirred" , "Artificial of manner, pretentious" .)