Is it MacCool in loud hostelry? (4)

I believe the answer is:

finn

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'is it maccool' is the definition.
I can't tell whether this defines the answer.

'loud hostelry?' is the wordplay.
'loud' becomes 'f' (short for forte - 'loud' in music).
'hostelry?' becomes 'inn' ('inn' can be a synonym of 'hostelry').
'f'+'inn'='FINN'

'in' acts as a link.

Can you help me to learn more?

(Other definitions for finn that I've seen before include "Someone from Helsinki?" , "eg Sibelius" , "Native of Espoo" , "Someone from Turku" , "Eg, Helsinki native" .)

I've seen this clue in The Independent.

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