Like ten to four on watch? Just the reverse (8)

I believe the answer is:

opposite

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

'the reverse' is the definition.
(synonyms)

I don't understand the remainder of the clue.

(Other definitions for opposite that I've seen before include "Reverse or antithesis" , "Contrary, antipode" , "Diametrically contrary" , "Contary of face-to-face" , "Directly across from" .)

I've seen this clue in The Guardian.

Want a hint initially instead of a full solution? Install my app