Rents grass out to break the law (10)
I believe the answer is:
transgress
'break the law' is the definition.
(thesaurus)
'rents grass out' is the wordplay.
'out' is an anagram indicator (out can mean wrong or inaccurate).
'rents'+'grass'='rentsgrass'
'rentsgrass' is an anagram of 'TRANSGRESS'.
'to' acts as a link.
(Other definitions for transgress that I've seen before include "misbehave" , "commit offence" , "Overstep, exceed" , "Go beyond (legal) limits" , "Break (limit, law)" .)