Smarty-pants (8)

There are a few possibilities for this:

Which length description are you looking for?:

11 6,5

wiseacre

'smarty-pants' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for wiseacre that I've seen before include "Know-all" , "One claims to know all" , "Smart Aleck" , "One assuming air of superior wisdom - simpleton" , "Person who tries to appear clever" .)

I've seen this clue in the Sydney Morning Herald.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.