Burning everything around motorway (9)
I believe the answer is:
cremation
'burning' is the definition.
(burning of a body)
'everything around motorway' is the wordplay.
'everything' becomes 'creation' (all of creation).
'around' means one lot of letters goes inside another.
'motorway' becomes 'M' (as in motorway names - M1, M4 etc).
'creation' placed around 'm' is 'CREMATION'.
(Other definitions for cremation that I've seen before include "The burning of a body" , "The incineration of a dead body" .)