Name of a sound vegetable soup finally given by the writer (5)

'name of a sound' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'vegetable soup finally given by the writer' is the wordplay.
'vegetable' becomes 'yam' (yam is a kind of vegetable).
'finally' indicates one should take the final letters.
'given by' means one lot of letters go next to another.
'the writer' becomes 'I' (the person who is writing these clues).
The last letter of 'soup' is 'p'.
'yam'+'p'+'i'='YAMPI'

Can you help me to learn more?