Make good company, surrounded by pure chaos (6)
I believe the answer is:
recoup
'make good' is the definition.
(synonyms)
'company surrounded by pure chaos' is the wordplay.
'company' becomes 'co' (abbreviation).
'surrounded by' is an insertion indicator.
'chaos' indicates an anagram.
'pure' anagrammed gives 'reup'.
'co' going within 'reup' is 'RECOUP'.
(Other definitions for recoup that I've seen before include "Regain, make good" , "recover money" , "Get back one's losses" , "make good one's losses" , "Get back or recover - say losses" .)