Busybody shopper, as originally depicted on TV? Triumphantly, yes (5)
I believe the answer is:
dotty
'busybody shopper' is the definition.
(character in Tesco adverts)
'originally depicted on tv? triumphantly yes' is the wordplay.
'originally' says to take the initial letters.
'yes' becomes 'y'.
The initial letters of 'depicted on tv triumphantly' is 'dott'.
'dott'+'y'='DOTTY'
'as' is the link.
(Other definitions for dotty that I've seen before include "Barking" , "Slightly mad (colloq.)" , "Feeble-minded" , "Slightly crazy" , "Bonkers; speckled" .)