Was humiliated in café? (4,4)

I believe the answer is:

lost face

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

'was humiliated' is the definition.
(I've seen this in another clue)

I cannot understand how the remainder of the clue works.

(Another definition for lost face that I've seen is " humiliated".)

I've seen this clue in The Guardian.

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