Do warn about it being ahead (6)

I believe the answer is:

onward

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

'being ahead' is the definition.
(I've seen this before)

'do warn about' is the wordplay.
'about' indicates an anagram.
'do'+'warn'='dowarn'
'dowarn' anagrammed gives 'ONWARD'.

'it' is the link.
I am not very happy about this link. It may belong to another bit of the clue.

Can you help me to learn more?

(Other definitions for onward that I've seen before include "Going on, advancing" , "In front" , "Forward in time" , "With advancing motion" , "Advanced" .)

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.