One you'll see raised at a tea party (3)
I believe the answer is:
cup
'one' is the definition.
The definition and answer can be both quantities as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'you'll see raised at a tea party' is the wordplay.
I cannot really understand how this works, but
'see' could be 'c' (the word for the letter, according to Chambers) and 'c' is present in the answer.
'raised' could be 'up' (similar in meaning) and 'up' is found in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for cup that I've seen before include "McCarthy, Walker or Maguire" , "Chalice; trophy" , "competition" , "Container to drink from - prize" , "Trophy, drink" .)