Silly, loud toilet revolts Marieke (9)
I believe the answer is:
foolhardy
'silly' is the definition.
(thesaurus)
'loud toilet revolts marieke' is the wordplay.
'loud' becomes 'f' (short for forte - 'loud' in music).
'toilet' becomes 'loo' (loo can informally mean a toilet).
'revolts' says the letters should be written in reverse.
'marieke' becomes 'hardy' (I can't justify this - if you can you should believe this answer much more).
'loo' written backwards gives 'ool'.
'f'+'ool'+'hardy'='FOOLHARDY'
Can you help me to learn more?
(Other definitions for foolhardy that I've seen before include "Dry loofah for quality of rashness" , "Rash - incautious" , "daredevil" , "Hot-headed" , "Impulsive" .)