Equipment that leaves one's friends, etc., breathless! (3)

I believe the answer is:

kit

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'equipment' is the definition.
(I know that kit is a type of cogwheel)

I can't explain the remainder of the clue.

(Other definitions for kit that I've seen before include "Set of tools or clothes" , "Apparatus" , "Colours are visible on such" , "Specialised clothing or set of parts for assembly" , "Young cat" .)

I've seen this clue in the Evening Standard.

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