Crossword Genius

Stops certain promotions (5)

Ross

I believe the answer is:

plugs

I'm a little stuck... Click here to teach me more about this clue!

This might be a double definition.

'stops' is the first definition.
(plug is a kind of stop)

'certain promotions' is the second definition.
'plugs' can be an answer for 'promotions' (plug is a kind of promotion). I'm not certain of the 'certain' bit.

Can you help me to learn more?

(Other definitions for plugs that I've seen before include "Advertisements" , "Stops up" , "Advertises" , "Electrical connectors" , "stoppers" .)

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