Renovation of store's no reason to take it easy (4,2,4,4)
I believe the answer is:
rest on ones oars
'take it easy' is the definition.
(to rest on one's oars is to be lazy)
'renovation of store's no reason' is the wordplay.
'renovation of' indicates an anagram (I've seen this in other clues).
'stores'+'no'+'reason'='storesnoreason'
'storesnoreason' anagrammed gives 'REST ON ONES OARS'.
'to' is the link.
(Other definitions for rest on ones oars that I've seen before include "One might after a row" , "Relax" , "Cease working" , "bringing a row to an end?" , "Stop rowing" .)