Sleet affected alloy (5)

I believe the answer is:

steel

'alloy' is the definition.
(I know that steel is a type of alloy)

'sleet affected' is the wordplay.
'affected' indicates an anagram.
'sleet' with letters rearranged gives 'STEEL'.

(Other definitions for steel that I've seen before include "Determination, metal" , "Hard, strong, grey alloy" , "The staying power" , "Strong metal" , "nerve" .)

I've seen this clue in The Mirror.

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