Sounded like a cow in a temper (4)

I believe the answer is:

mood

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'temper' is the definition.
(I know that temper can be written as mood)

I can't explain the rest of the clue.

(Other definitions for mood that I've seen before include "State of mind or feeling" , "Depression" , "Emotional state" , "sullenness may be indicative" , "Disposition" .)

I've seen this clue in the Sydney Morning Herald.

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