Dine out (6)

I believe the answer is:

picnic

'dine out' is the definition.
(thesaurus)

This is the entire clue.

(Other definitions for picnic that I've seen before include "something easy to do" , "Easy task - outdoor event" , "Informal open-air meal" , "Informal outdoor summer meal" , "Informal meal outside" .)

I've seen this clue in The Telegraph.

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