Admit Lee was no match for him (5)
I believe the answer is:
grant
'admit' is the definition.
(thesaurus)
'lee was no match for him' is the wordplay.
I cannot quite see how this works, but
'no' could be 'n' (common abbreviation) and 'n' is present in the answer.
The remaining letters 'grat' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for grant that I've seen before include "Confer" , "cash allowance?" , "Bestow; bursary" , "Concede, like an American general" , "Allow (something)" .)