Intro to Teen Spirit by Dutton's musicians (10)
I believe the answer is:
trumpeters
'musicians' is the definition.
(trumpeter is a kind of musician)
'intro to teen spirit by dutton's' is the wordplay.
'intro to' suggests taking the first letters (I've seen 'intros to' mean this).
'spirit' becomes 'rum' (alcoholic spirit).
'by' is a charade indicator (letters next to each other).
'dutton' becomes 'peters' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
The first letter of 'teen' is 't'.
't'+'rum'+'peters'='TRUMPETERS'
Can you help me to learn more?
(Another definition for trumpeters that I've seen is " musicians".)