Here's unusually steep (5)

I believe the answer is:

sheer

'steep' is the definition.
(similar in meaning)

'here's unusually' is the wordplay.
'unusually' is an anagram indicator.
'heres' anagrammed gives 'SHEER'.

(Other definitions for sheer that I've seen before include "transparent fabric" , "Steep; fine" , "Downright - deviation" , "Unqualified" , "needing to change a course" .)

I've seen this clue in The Mirror.

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