Vain, too; out to get applause (7)
I believe the answer is:
ovation
'applause' is the definition.
(I've seen this before)
'vain too out' is the wordplay.
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'vain'+'too'='vaintoo'
'vaintoo' is an anagram of 'OVATION'.
'to get' acts as a link.
(Other definitions for ovation that I've seen before include "Sustained show of applause" , "Wild applause" , "Prolonged applause" , "Applause from an audience" , "Too vain (anag)" .)