Boisterous rubbish coach enters into (6)
I believe the answer is:
robust
'into' is the definition.
I can't judge whether this definition defines the answer.
'boisterous rubbish coach enters' is the wordplay.
'boisterous rubbish' becomes 'rot' (I've seen this before. I am not sure about the 'boisterous' bit.**).
'coach' becomes 'bus' ('bus' can be a synonym of 'coach').
'enters' indicates putting letters inside.
'rot' placed around 'bus' is 'ROBUST'.
Can you help me to learn more?
(Other definitions for robust that I've seen before include "Forceful" , "Turbos (anag) - fit for purpose!" , "Stout" , "Sturdily built" , "Study and durable" .)