Additional oxygen blended with H 2 O leading to a fuss (3-2)
I believe the answer is:
hoo-ha
'fuss' is the definition.
(I've seen this before)
'additional oxygen blended with h 2 o leading to a' is the wordplay.
I cannot quite understand how this works, but
'oxygen' could be 'o' (O is the chemical symbol for oxygen) and 'o' is located in the answer.
'h' is present in the answer.
'o' is present in the answer.
'a' is within the answer.
A single letter 'h' remains which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for hoo-ha that I've seen before include "Big fuss" , "Commotion (informal)" , "Song and dance" , "Noisy fuss" , "In slang, it's a commotion" .)