One's supporter at the bar? (5)
I believe the answer is:
stool
This clue might be a double definition.
'one's supporter' is the first definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.
'the bar?' is the second definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps there's a link between them I don't understand?
'at' acts as a link.
Can you help me to learn more?
(Other definitions for stool that I've seen before include "Backless chair" , "Simple seat" , "Motion" , "Three-legged backless seat" , "Armless seat" .)