Rare shot taken in pyjamas, sexy (5)

I believe the answer is:

masse

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'rare shot' is the definition.
'masse' can be an answer for 'shot' (masse shot is a kind of shot). I'm not sure about the 'rare' bit.

'taken in pyjamas sexy' is the wordplay.
'taken in' says the answer is hidden in the clue.
'MASSE' is hidden within 'pyjamas sexy'.

Can you help me to learn more?

(Other definitions for masse that I've seen before include "Swerving snooker stroke" , "'En ..., all together (5)'" , "Swerve shot at billiards" .)

I've seen this clue in The Telegraph.

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