Jams sold in jars (7)

I believe the answer is:

pickles

I believe this is a double definition.

'jams' is the first definition.
(problems)

'sold in jars' is the second definition.

(Other definitions for pickles that I've seen before include "Preserves in vinegar or brine" , "Vegetables preserved in vinegar or brine" .)

I've seen this clue in The Globe and Mail.

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