Curse from mischievous type on record leads to a thick ear (9)
I believe the answer is:
imprecate
'curse' is the definition.
('imprecate' can be a synonym of 'curse')
'mischievous type on record leads to a thick ear' is the wordplay.
I cannot quite see how this works, but
'on' could be 're' ('on' can be mean 'with reference to') and 're' is present in the answer.
'a' is within the answer.
This may be the basis of clue (or it may be nonsense).
'from' acts as a link.
Can you help me to learn more?
(Other definitions for imprecate that I've seen before include "Swear" , "Put curse on (someone)" , "Invoke evil -- crime tape (anag)" .)