Besides it’s higher, as the foreigner said (8)

I believe the answer is:

moreover

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

'besides' is the definition.
(synonyms)

I don't understand how the remainder of the clue works.

(Other definitions for moreover that I've seen before include "Furthermore, in addition" , "as well" , "Besides, in addition" .)

I've seen this clue in the Evening Standard.

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