Crossword Genius

Vessel involved in a storm (6)


I believe the answer is:


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

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

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for teacup that I've seen before include "China possibly" , "Earl Grey holder?" , "proverbially stormy location" , "leaves on one's bottom?" , "Drinking vessel" .)

I've seen this clue in the Evening Standard.
Want a hint initially instead of a full solution? Install my app