Crossword Genius

Swarm that’s somewhat reduced in heat (6)

Ross

I believe the answer is:

warmth

'heat' is the definition.
(I know that heat can be written as warmth)

'swarm that's somewhat reduced' is the wordplay.
'somewhat reduced' indicates a hidden word.
'WARMTH' is hidden in the letters of 'swarm that'.

'in' acts as a link.

(Other definitions for warmth that I've seen before include "Mild heat" , "Comfort" , "tenderness" , "Ardour" , "Feeling" .)

I've seen this clue in The Times.
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