Reuse art turning it into something they'll cherish (8)
I believe the answer is:
treasure
'cherish' is the definition.
(synonyms)
'reuse art turning' is the wordplay.
'turning' is an anagram indicator.
'reuse'+'art'='reuseart'
'reuseart' anagrammed gives 'TREASURE'.
'it into something they'll' is the link.
This may not be right. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for treasure that I've seen before include "masterpiece?" , "Jewel hoard" , "Value highly" , "Valuable hoard" , "quantity of wealth" .)