How to make ears burn (4)

I believe the answer is:

sear

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'burn' is the definition.
(sear can mean to burn)

'how to make ears' is the wordplay.
'ears' can be anagrammed to 'SEAR'.
Though, I am unsure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for sear that I've seen before include "Burn briefly" , "Cook (quickly at great heat)" , "Scorch or burn the surface of" , "Dried-up, parched" , "Cauterize" .)

I've seen this clue in the Evening Standard.

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