A Gallic old flame, quoted as bored (9)
I believe the answer is:
unexcited
'bored' is the definition.
Both the answer and definition are adjectives. Maybe you can see a link between them that I can't see?
'a gallic old flame quoted' is the wordplay.
'a gallic' becomes 'un' (I can't justify this - if you can you should give a lot more credence to this answer).
'old flame' becomes 'ex' (an ex-partner).
'quoted' becomes 'cited' ('cite' can be a synonym of 'quote').
'un'+'ex'+'cited'='UNEXCITED'
'as' acts as a link.
Can you help me to learn more?
(Other definitions for unexcited that I've seen before include "In need of stimulation" , "Showing little emotion" , "Not emotionally roused" , "Impassive" .)