Live group surrounded (5)
I believe the answer is:
beset
'surrounded' is the definition.
(I've seen this before)
'live group' is the wordplay.
'live' becomes 'be' (synonyms).
'group' becomes 'set' (both can mean a collection).
'be'+'set'='BESET'
(Other definitions for beset that I've seen before include "besieged" , "Hemmed in, afflicted with" , "Assail or attack on all sides" , "Trouble or harass persistently" , "Assail (with problems?)" .)