Snout stuck in pipe? (7)

I believe the answer is:

tobacco

'pipe?' is the definition.
(synonyms)

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

(Other definitions for tobacco that I've seen before include "Leaves that are smoked" , "New World product" , "Addictive leaf" , "Put that in your pipe and smoke it!" , "Smokable plant" .)

I've seen this clue in The Guardian.

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