Lively odds justly followed (9)
I believe the answer is:
sprightly
'lively' is the definition.
('sprightly' can be a synonym of 'lively')
'odds justly followed' is the wordplay.
'odds' becomes 'sp' (betting abbreviation for starting price).
'justly' becomes 'rightly' ('rightly' can be a synonym of 'justly').
'followed' means one lot of letters go next to another.
'sp'+'rightly'='SPRIGHTLY'
(Other definitions for sprightly that I've seen before include "Moving nimbly" , "Lively" , "Agile" , "Brisk" , "Vivacious" .)