Holiday gone bad? Drop it (5,3)

I believe the answer is:

leave off

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

'drop it' is the definition.
(thesaurus)

'holiday gone bad?' is the wordplay.
'holiday' becomes 'leave' (I've seen this before).
'gone bad?' becomes 'off' (eg meat that's gone off is bad. I am not sure about the 'gone' bit.).
'leave'+'off'='LEAVE OFF'

Can you help me to learn more?

(Other definitions for leave off that I've seen before include "not eating or drinking" , "Give over!" , "Cease, or shed garment" .)

I've seen this clue in The Irish Times.

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.