Fighting female concealing a warm heart (6)
I believe the answer is:
karate
'fighting' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Maybe there's an association between them I don't understand?
'female concealing a warm heart' is the wordplay.
'female' becomes 'kate' (I can't explain this - if you can you should give a lot more credence to this answer).
'concealing' indicates putting letters inside.
'heart' says to take the centre.
The middle letters of 'warm' are 'ar'.
'kate' placed around 'ar' is 'KARATE'.
Can you help me to learn more?
(Other definitions for karate that I've seen before include "Oriental-style chops" , "Martial art (with chopping?)" , "Unarmed-combat system" , "A taker (anag)" , "SPORT/GAME" .)