Take a chance with outsiders from Bristol in match (6)
I believe the answer is:
gamble
'take a chance' is the definition.
(synonyms)
'outsiders from bristol in match' is the wordplay.
'outsiders from' means to remove the middle letters (letters on the outside of the word).
'in' is an insertion indicator.
'match' becomes 'game' (I've seen this before).
'bristol' with its middle taken out is 'bl'.
'bl' inserted into 'game' is 'GAMBLE'.
'with' is the link.
(Other definitions for gamble that I've seen before include "Wager; sounds like frolic" , "Place bets" , "Bet -- Procter's partner" , "Bet money" , "Take risks" .)