Blistering on one's heels, perhaps? (3)
I believe the answer is:
hot
'blistering' is the definition.
(similar in meaning)
'on one's heels perhaps?' is the wordplay.
'on' is an insertion indicator (as in clothing 'on' a person).
'one' becomes 'o' (I've seen this in other clues).
'heels perhaps?' becomes 'ht' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'o' placed into 'ht' is 'HOT'.
Can you help me to learn more?
(Other definitions for hot that I've seen before include "Intense - illegal - dangerous" , "(Of goods) stolen (colloq.)" , "Very popular" , "SECOND PART OF 11" , "Radioactive; very warm" .)