Excess from Oscar on daily bar tours (8)
I believe the answer is:
leftover
'excess' is the definition.
(thesaurus)
'oscar on daily bar tours' is the wordplay.
'oscar' becomes 'O' (phonetic alphabet: alpha, bravo, charlie etc.).
'on' is a charade indicator (letters next to each other).
'daily' becomes 'FT' (the Financial Times is a daily newspaper).
'bar' becomes 'lever' (lever is a kind of bar).
'tours' is an insertion indicator (to tour can mean to go around).
'o' put after 'ft' is 'fto'.
'fto' placed into 'lever' is 'LEFTOVER'.
'from' acts as a link.
(Other definitions for leftover that I've seen before include "Remaining" , "Finally unused" , "Remnant" , "What remains" , "something you'd keep on the plate!" .)