The good condition has a bearing on what you want (6)
I believe the answer is:
newish
'the good condition has a' is the definition.
I can't tell whether this definition defines the answer.
'bearing on what you want' is the wordplay.
I cannot really see how this works, but
'bearing' could be 'ne' and 'ne' is found in the answer.
'want' could be 'wish' (synonyms) and 'wish' is present in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for newish that I've seen before include "Rather recent" , "Quite recent" , "Rather novel" , "Fairly recent" , "having not long been born" .)