Crossword Genius

Something you can stick on the wall (6)

Ross

I believe the answer is:

stucco

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'stick on the wall' is the definition.
The answer and definition can be both to do with contact as well as being verbs in their base form.
Perhaps you can see an association between them that I can't see?

I don't understand the remainder of the clue.

Can you help me to learn more?

(Other definitions for stucco that I've seen before include "Plaster for ornamental moulding" , "Kind of plaster moulded into decorations" , "Coating material" , "White plaster covering for exterior walls" , "Durable finish for walls" .)

I've seen this clue in the Evening Standard.
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