Gather blames circulated around London area (8)
I believe the answer is:
assemble
'gather' is the definition.
(I know that gather can be written as assemble)
'blames circulated around london area' is the wordplay.
'circulated' indicates anagramming the letters.
'around' indicates putting letters inside.
'london area' becomes 'SE' (abbreviation for South East).
'blames' with letters rearranged gives 'asmble'.
'asmble' placed around 'se' is 'ASSEMBLE'.
(Other definitions for assemble that I've seen before include "Bring/come together" , "Gather together at meeting place" , "Gather or collect together" , "Get together" , "Put together all the components" .)