Storm here not exactly tempest? (6)
I believe the answer is:
teacup
'storm here not exactly tempest?' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
This is all the clue.
Can you help me to learn more?
(Other definitions for teacup that I've seen before include "Drinking vessel" , "Drinking container that may contain a small storm" , "At the end here, maybe, leaves" , "Earl Grey holder?" , "China possibly" .)