He'll attract attention breakdancing, right? (6)
I believe the answer is:
barker
'he'll attract attention breakdancing' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'right?' is the wordplay.
I cannot quite understand how this works, but
'right?' could be 'ar' (I've seen this in other clues) and 'ar' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for barker that I've seen before include "Tout" , "Loud showman and dog" , "setter, perhaps" , "One stands at a carnival giving loud, colourful, sales talk" .)