European artist backing commercial noise-reduction system? (7)
I believe the answer is:
earplug
'noise-reduction system?' is the definition.
I can't tell whether this defines the answer.
'european artist backing commercial' is the wordplay.
'european' becomes 'E' (abbreviation e.g. EU).
'artist' becomes 'RA' (Royal Academician, member of Royal Academy of Arts).
'backing' shows that the letters should be reversed in order.
'commercial' becomes 'plug' (I've seen this in another clue).
'ra' back-to-front is 'ar'.
'e'+'ar'+'plug'='EARPLUG'
Can you help me to learn more?
(Other definitions for earplug that I've seen before include "Protection from sound" , "affording protection for organ" , "silencer" , "protection from racket" , "It keeps out noise" .)