Missed stroke, as atmosphere’s sweltering (3,4)

I believe the answer is:

air shot

'missed stroke' is the definition.
(a missed attempt to hit a ball)

'atmosphere's sweltering' is the wordplay.
'atmosphere's' becomes 'air's' ('air' can be a synonym of 'atmosphere').
'sweltering' becomes 'hot' (similar in meaning).
'airs'+'hot'='AIR SHOT'

'as' acts as a link.

(Another definition for air shot that I've seen is " Golf stroke that misses the ball".)

I've seen this clue in The Times.

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