Remind actor to stir pot of pork regularly for meat starter (6)

I believe the answer is:

prompt

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'remind' is the definition.
(I know that remind can be written as prompt)

I can't explain the rest of the clue.

(Other definitions for prompt that I've seen before include "Supply a forgotten line to an actor" , "Quick - cue" , "Immediate - remind of lines" , "Bring about; actors' help" , "keeping to the right time" .)

I've seen this clue in The Irish Times.

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