Cares a lot about powered flight (9)
I believe the answer is:
escalator
'powered flight' is the definition.
'escalator' can be an answer for 'flight' (I have seen 'nonstop flight' mean 'escalator' so perhaps 'flight' could also mean 'escalator'). I'm not certain of the 'powered' bit.
'cares a lot about' is the wordplay.
'about' is an anagram indicator.
'cares'+'a'+'lot'='caresalot'
'caresalot' is an anagram of 'ESCALATOR'.
Can you help me to learn more?
(Other definitions for escalator that I've seen before include "Carol eats (anag.)" , "Moving stairway" , "Moving stairs" , "financial clause" , "nonstop flight" .)