One way to make ears burn! (4)
I believe the answer is:
sear
'burn' is the definition.
(sear can mean to burn)
'one way to make ears' is the wordplay.
'ears' can be anagrammed to 'SEAR'.
But, I'm not sure how the anagram is indicated.
Can you help me to learn more?
(Other definitions for sear that I've seen before include "Withered" , "Make very hot and dry" , "Cauterise" , "Dried up, parched" , "Scorch or burn the surface of" .)