Unconventional; crazy (5)

I believe the answer is:

wacky

This clue is a double definition.

'unconventional' is the first definition.
(thesaurus)

'crazy' is the second definition.
(I've seen this before)

(Other definitions for wacky that I've seen before include "Bonkers" , "Oddly crazy" , "Eccentric - erratic" , "Oddly amusing (colloq.)" , "Funny in a peculiar way" .)

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.