Lively, feisty (8)
I believe the answer is:
spirited
I believe this is a double definition.
'lively' is the first definition.
(associated in meaning)
'feisty' is the second definition.
(similar in meaning)
(Other definitions for spirited that I've seen before include "In game" , "Full of energy and enthusiasm" , "Vigorous" , "Full of beans" , "with brio" .)