Elements making water good to keep for oneself (3)
I believe the answer is:
hog
'keep for oneself' is the definition.
(I've seen this in another clue)
'elements making water good' is the wordplay.
I cannot really understand how this works, but
'good' could be 'g' (abbreviation) and 'g' is found within the answer.
The remaining letters 'ho' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'to' is the link.
Can you help me to learn more?
(Other definitions for hog that I've seen before include "Swine - keep for oneself" , "Domestic adult swine" , "Greedy person or pig for slaughter" , "A male pig or a greedy person" , "Gourmand" .)