Barge in Bury free to move around (9)
I believe the answer is:
interfere
'barge in' is the definition.
(thesaurus)
'bury free to move around' is the wordplay.
'bury' becomes 'inter' (synonyms).
'to move around' indicates an anagram (I've seen 'moves around' mean this).
'free' with letters rearranged gives 'fere'.
'inter'+'fere'='INTERFERE'
(Other definitions for interfere that I've seen before include "Stick one's oar in" , "Intruder does" , "Meddle, butt in" , "Meddle in someone else's business" , "Poke one's nose in" .)