Coin to steal self-centredly? (6)

I believe the answer is:

nickel

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

'coin' is the definition.
(I know that nickel is a type of coin)

'steal self-centredly?' is the wordplay.
'steal' becomes 'nick' (nick can informally mean to steal).
'self-centredly?' becomes 'el' (I can't explain this - if you can you should give a lot more credence to this answer).
'nick'+'el'='NICKEL'

'to' is the link.

Can you help me to learn more?

(Other definitions for nickel that I've seen before include "Metal - 5 cents" , "US 5 cents" , "Metal; five US cents" , "American 5-cent piece" , "US coin worth five cents" .)

I've seen this clue in the Evening Standard.

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.