Actors on tour store up plays (7)

I believe the answer is:

troupes

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'actors on tour' is the definition.
Although both the answer and definition are plural nouns, I can't understand how one could define the other.

'store up plays' is the wordplay.
'plays' indicates anagramming the letters.
'store'+'up'='storeup'
'storeup' with letters rearranged gives 'TROUPES'.

Can you help me to learn more?

(Other definitions for troupes that I've seen before include "performers of Swan Lake" , "The acrobatic ones" , "Groups of entertainers" .)

I've seen this clue in The Guardian.

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