Put off by night club saying you are old (11)
I believe the answer is:
discouraged
'old' is the definition.
Both the answer and definition are adjectives. Perhaps they are linked in a way I don't understand?
'put off by night club saying you are' is the wordplay.
I cannot really see how this works, but
'club' could be 'disco' (night club) and 'disco' is present in the answer.
'you' could be 'u' (commonly used in online communication) and 'u' is found in the answer.
'are' could be 'raged' (raging is a kind of being) and 'raged' is found within the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for discouraged that I've seen before include "Dejected" , "opposed" , "Pessimistic" .)