The rest of the MPs? (6)

I believe the answer is:

recess

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'the rest' is the definition.
(thesaurus)

I don't understand how the rest of the clue works.

(Other definitions for recess that I've seen before include "Closure of Parliament during a vacation" , "Closed period for parliament" , "Pause in business, time out" , "Niche, hollow in a wall" , "Holiday period" .)

I've seen this clue in The Times.

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