Finally leave on excursion with mature followers (9)
I believe the answer is:
entourage
'followers' is the definition.
(thesaurus)
'finally leave on excursion with mature' is the wordplay.
'finally' indicates one should take the final letters.
'excursion' becomes 'tour' (I've seen this before).
'with mature' becomes 'age' ('age' can be a synonym of 'mature'. I am not sure about the 'with' bit.**).
The last letters of 'leave on' are 'en'.
'en'+'tour'+'age'='ENTOURAGE'
Can you help me to learn more?
(Other definitions for entourage that I've seen before include "Support team" , "Retinue, cortege" , "The people accompanying a VIP" , "company" , "Ego nature found in accompanying group" .)