Primarily hound's or wolf's lament? (4)

I believe the answer is:

howl

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'primarily hound's or wolf's lament?' is the definition.
I can't tell whether this defines the answer.

'primarily hound's or wolf's lament?' is the wordplay.
'primarily' indicates taking the first letters.
The first letters of 'hounds or wolfs lament' is 'HOWL'.

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(Other definitions for howl that I've seen before include "Plaintive wolf cry" , "Wolf sound" , "Bay, clamour" , "Bay - cry" , "Laugh (or cry?)" .)

I've seen this clue in The Times.

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