Crossword Genius

Class (5)

Ross

'class' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for tier that I've seen before include "Level - layer" , "One making knot - level" , "He might do sailor's knots" , "One of two or more rows" , "'Level, grade (4)'" .)

I've seen this clue in The Telegraph, The New York Times and the Penny Press.
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