Trouble from school next to motorway — that is loud (8)
I believe the answer is:
mischief
'trouble' is the definition.
(I've seen this before)
'school next to motorway that is loud' is the wordplay.
'school' becomes 'sch' (abbreviation).
'next to' is a charade indicator (letters next to each other).
'motorway' becomes 'MI' (resembles Ms, English motorway).
'that is' becomes 'ie' (short for Latin 'id est', 'that is').
'loud' becomes 'f' (short for forte - 'loud' in music).
'sch' put after 'mi' is 'misch'.
'misch'+'ie'+'f'='MISCHIEF'
'from' is the link.
(Other definitions for mischief that I've seen before include "Wrongdoing, devilment" , "(Playfully) destructive behaviour" , "Playful troublemaking" , "Petty misdeeds or real damage" , "Playful misbehaviour" .)