Adhesive made from flour and water (5)

I believe the answer is:

paste

(Other definitions for paste that I've seen before include "Adhesive, doughy, or jewel-like substance" , "Stick - imitation gems" , "Imitation gems; adhesive" , "food preparation" , "Adhesive, for wallpaper say" .)

I've seen this clue in The Irish Times.

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