Moving a lot, I'm one on the move! (9)
I believe the answer is:
emotional
'moving' is the definition.
(associated in meaning)
'a lot i'm one on the move' is the wordplay.
'on the move' indicates an anagram.
'a'+'lot'+'im'+'one'='alotimone'
'alotimone' is an anagram of 'EMOTIONAL'.
(Other definitions for emotional that I've seen before include "Loving" , "Exhibiting strong feelings" , "Deeply feeling" , "Dramatic" , "Arousing intense feelings" .)