21 across
Quiet
country
hotel,
first-class
fish
(7)
Quiet country hotel, first-class fish (7)
hints
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checks
0
hints
The definition is at the end of the clue.
How the clue works
Look at fish at the end — that's what you're after. The rest is a charade built up piece by piece: P for quiet (piano in musical terms), then IRAN as your country, then H for hotel (NATO alphabet), and finally A for first-class (as in A1), and it all strings together to give you your answer.