Get rid of rubbish I created around area (9)
I believe the answer is:
eradicate
'get rid of' is the definition.
(thesaurus)
'rubbish i created around area' is the wordplay.
'rubbish' indicates anagramming the letters.
'around' indicates putting letters inside.
'area' becomes 'a' (maths abbreviation).
'i'+'created'='icreated'
'icreated' is an anagram of 'eradicte'.
'eradicte' placed around 'a' is 'ERADICATE'.
(Other definitions for eradicate that I've seen before include "Extinguish, wipe out" , "Stamp out, remove all traces of" , "Kill" , "Get rid of, remove all traces" , "carry out a purge" .)