Stipulation in favour of protective gear snubbed (7)

I believe the answer is:

proviso

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'stipulation' is the definition.
(proviso is a kind of stipulation)

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(Other definitions for proviso that I've seen before include "Clause in contract" , "Rider" , "Condition attached to an agreement" , "Condition added to an agreement" , "Stipulation (in contract)" .)

I've seen this clue in The Times.

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