Preservative making a deformed tin stop moving (10)
I believe the answer is:
antifreeze
'preservative' is the definition.
The answer and definition can be both substances as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'a deformed tin stop moving' is the wordplay.
'deformed' is an anagram indicator.
'stop moving' becomes 'freeze' (freeze can mean to go still).
'tin' with letters rearranged gives 'nti'.
'a'+'nti'+'freeze'='ANTIFREEZE'
'making' acts as a link.
Can you help me to learn more?
(Other definitions for antifreeze that I've seen before include "Car radiator additive" , "Winter essential in engines" , "Winter radiator additive" , "Addition to radiator" , "Liquid added to car radiator" .)