Lie in tangle with lady in perfect world (7)
I believe the answer is:
ideally
'lie in tangle with lady in perfect world' is the definition.
I can't judge whether this definition defines the answer.
'lie in tangle with lady' is the wordplay.
'in tangle with' indicates anagramming the letters.
'lie' with its letters mixed up with 'lady' can make 'IDEALLY'.
Can you help me to learn more?
(Other definitions for ideally that I've seen before include "Lay idle (anag)" , "In the best of all possible worlds" , "In the most perfect way" , "In a perfect world, the best possible situation" , "for preference" .)