Concerning preserve, I have to be too wary (14)
I believe the answer is:
overprotective
'wary' is the definition.
Both the answer and definition are adjectives. Perhaps they are linked in a way I don't understand?
'concerning preserve i have to be too' is the wordplay.
'concerning' becomes 'over' (both can mean relating to).
'preserve' becomes 'protect' (I can't justify this - if you can you should give a lot more credence to this answer).
'i have' becomes 'I've' (contraction of 'I have').
'to be too' says to put letters next to each other.
'over'+'protect'+'ive'='OVERPROTECTIVE'
Can you help me to learn more?
(Another definition for overprotective that I've seen is " Prone to mollycoddling".)