Lady Penelope's driver called out for coat (5)

I believe the answer is:

parka

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'for coat' is the definition.
(parka is a kind of coat)

I don't understand the remainder of the clue.

(Other definitions for parka that I've seen before include "Kind of heavy jacket" , "Hooded weatherproof coat" , "Hooded garment" , "outdoor clothing" , "Windproof jacket" .)

I've seen this clue in The Sun.

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