A god of love originally: one can produce a cloud (7)
I believe the answer is:
aerosol
'cloud' is the definition.
(aerosol is a kind of cloud)
'a god of love originally' is the wordplay.
'god' becomes 'eros' (Eros is an example).
'originally' says to take the initial letters.
The first letters of 'of love' is 'ol'.
'a'+'eros'+'ol'='AEROSOL'
'one can produce a' acts as a link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for aerosol that I've seen before include "Pressurised canister that emits spray of fine droplets" , "Pressurized container" , "Mister" , "Air-spray" , "Container with device for releasing contents as fine spray" .)