Bears eating finished jams (4-3)

I believe the answer is:

hold-ups

'jams' is the definition.
(traffic jams)

'bears eating finished' is the wordplay.
'bears' becomes 'holds' ('hold' can be a synonym of 'bear').
'eating' is an insertion indicator.
'finished' becomes 'up' (eg 'time's up' means the time is finished).
'holds' placed around 'up' is 'HOLD-UPS'.

I've seen this clue in The Telegraph.

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