Indian potato fine? Slightly off (5)

I believe the answer is:

aloof

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

'off' is the definition.
(thesaurus)

'indian potato fine? slightly' is the wordplay.
'indian potato' becomes 'aloo' (I've seen this before).
'fine? slightly' becomes 'f' (abbreviation. I am not sure about the 'slightly' bit.).
'aloo'+'f'='ALOOF'

Can you help me to learn more?

(Other definitions for aloof that I've seen before include "Standoffish like a fool" , "Displaying supercilious reserve" , "Snooty" , "Coldly distant" , "Withdrawn, supercilious" .)

I've seen this clue in The Sun.

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.