Comedian gets someone to attract punters to show (6)
I believe the answer is:
barker
'comedian' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe they are linked in a way I don't understand?
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for barker that I've seen before include "One stands at a carnival giving loud, colourful, sales talk" , "setter, perhaps" , "Loud showman and dog" , "Tout" .)