Dash to revamp the arts (7)
I believe the answer is:
shatter
'dash' is the definition.
(thesaurus)
'revamp the arts' is the wordplay.
'revamp' indicates an anagram (I've seen 'revamped' mean this).
'the'+'arts'='thearts'
'thearts' anagrammed gives 'SHATTER'.
'to' acts as a link.
(Other definitions for shatter that I've seen before include "Break into many bits" , "Support for broken arm" , "Smash to pieces" , "Go to pieces" , "Break the minister into little pieces" .)