Getting on a bit (4)

I think it could be either:

Which length description are you looking for?:

elderly

'getting on a bit?' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for elderly that I've seen before include "Silver" , "Past middle age, a senior citizen" , "... or not of tender years" , "Fairly old, past middle age" , "Not young" .)

I've seen this clue in The Guardian.

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.