Crossword Genius

It can be stuck in a good way! (3)

Ross

I believe the answer is:

pin

I'm a little stuck... Click here to teach me more about this clue!

'it can be stuck' is the definition.
The definition suggests a singular noun which matches the answer.

'a good way' is the wordplay.
'a good' becomes 'pi' (old-fashioned term for pious).
'way' becomes 'n' (Compass direction - North).
'pi'+'n'='PIN'

'in' is the link.

Can you help me to learn more?

(Other definitions for pin that I've seen before include "Tack; fasten" , "Fixing device" , "Fasten; a security code" , "Peg or nail" , "Flagged stick placed in golf hole" .)

I've seen this clue in the Evening Standard.
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