Not one left in satisfactory condition? (3,5)
I believe the answer is:
all right
'not one' is the definition.
Both the definition and answer are adjectives. Perhaps they are linked in a way I don't understand?
'left in satisfactory condition?' is the wordplay.
I cannot really see how this works, but
'left' could be 'l' (common abbreviation) and 'l' is located in the answer.
'satisfactory' could be 'alright' (similar in meaning) and 'alright' is found in the remaining letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for all right that I've seen before include "Very well, whatever you say" , "unharmed?" , "Fairly well; acceptable" , "Unhurt - very good" , "What's clearly acceptable" .)