Active — deft (6)
I believe the answer is:
nimble
I believe this clue is a double definition.
'active' is the first definition.
(similar in meaning)
'deft' is the second definition.
(thesaurus)
(Other definitions for nimble that I've seen before include "Swift, active" , "Light and quick in movement" , "Quick on the feet" , "Quick moving" , "Agile - alert" .)