Dubiously sell art connected to top celebrities … (7)
I believe the answer is:
stellar
'connected to top celebrities' is the definition.
I can't tell whether this definition defines the answer.
'dubiously sell art' is the wordplay.
'dubiously' indicates anagramming the letters.
'sell'+'art'='sellart'
'sellart' with letters rearranged gives 'STELLAR'.
Can you help me to learn more?
(Other definitions for stellar that I've seen before include "Relating to the stars" , "Like highlights" , "Astral" , "Starry" , "celebrity" .)