Crossword Genius

Promise to take part in (6)

Ross

I believe the answer is:

engage

I believe this clue is a double definition.

'promise' is the first definition.
(I've seen this before)

'take part in' is the second definition.
(thesaurus)

'to' acts as a link.

(Other definitions for engage that I've seen before include "Join" , "Hold" , "Employ or get involved in battle" , "Become bound; attract" , "Employ or captivate" .)

I've seen this clue in the Evening Standard.
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