A heavy dance I choreographed is now a clichéd statement (4,1,4,3)
I believe the answer is:
have a nice day
'now a cliched statement' is the definition.
I know nothing about this answer so I can't judge whether this works.
'a heavy dance i choreographed' is the wordplay.
'a heavy dance i' can be anagrammed to 'HAVE A NICE DAY'.
Though, I'm unsure how the anagram is indicated.
'is' acts as a link.
Can you help me to learn more?
(Other definitions for have a nice day that I've seen before include "Dutifully polite commonly-spoken American valediction" , "Cordial American parting words" , "Enjoy yourself!" .)