Kinder lab can make it potable (9)
I believe the answer is:
drinkable
'potable' is the definition.
(I know that potable can be written as drinkable)
'kinder lab can make' is the wordplay.
'can make' is an anagram indicator.
'kinder'+'lab'='kinderlab'
'kinderlab' anagrammed gives 'DRINKABLE'.
'it' is the link.
I am not very happy about this link. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for drinkable that I've seen before include "What water may be" , "Potable" .)