Prisoner getting inner boost somewhere in Bristol (7)

I believe the answer is:

clifton

'somewhere in bristol' is the definition.
(area of Bristol)

'prisoner getting inner boost' is the wordplay.
'prisoner' becomes 'con' (abbreviation for 'convict').
'getting' means one lot of letters goes inside another.
'inner boost' becomes 'lift' (both can mean to steal. I am not sure about the 'inner' bit.).
'con' enclosing 'lift' is 'CLIFTON'.

(Another definition for clifton that I've seen is " bridge?".)

I've seen this clue in The Times.

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