Not sound advice if this tap gets stuck! (6)

I believe the answer is:

faucet

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'not sound advice if this tap gets stuck' is the definition.
'faucet' can be an answer for 'tap' (term for a tap in US English). I'm unsure of the remainder of the definition.

This is the entire clue.

Can you help me to learn more?

(Other definitions for faucet that I've seen before include "Pipe" , "An American water tap" , "One may turn on this" , "Spigot, tap" , "North American tap" .)

I've seen this clue in The Globe and Mail.

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