Vender at times used this? (13)

I believe the answer is:

I'm a little stuck... Click here to teach me more about this clue!

'this?' is the definition.
The definition suggests a singular noun which matches the answer.

'vender at times used' is the wordplay.
'used' indicates an anagram.
'vender'+'at'+'times'='venderattimes'
'venderattimes' with letters rearranged gives 'ADVERTISEMENT'.

Can you help me to learn more?

(Other definitions for advertisement that I've seen before include "Publicity announcement" , "trailer" , "Placard" , "Commercial promotion" , "Public promotion" .)

I've seen this clue in The Telegraph.

Want a hint initially instead of a full solution? Install my app