Intense skill, circling where animal hides (6)
I believe the answer is:
ardent
'intense' is the definition.
(I've seen this in another clue)
'skill circling where animal hides' is the wordplay.
'skill' becomes 'art' (both can mean a talent).
'circling' indicates putting letters inside (circling can mean going around or containing).
'where animal hides' becomes 'den' (I can't explain this - if you can you should give a lot more credence to this answer).
'art' enclosing 'den' is 'ARDENT'.
Can you help me to learn more?
(Other definitions for ardent that I've seen before include "Fiery and zealous" , "Burning, passionate" , "Hot" , "Passionate, fervent" , "full of zeal" .)