European has the final word about pipe cleaner (5)
I believe the answer is:
enema
'pipe cleaner' is the definition.
'enema' can be an answer for 'cleaner' (thesaurus). I am unsure of the 'pipe' bit.
'european has the final word about' is the wordplay.
'european' becomes 'e' (abbreviation e.g. EU).
'has' means one lot of letters go next to another.
'the final word' becomes 'amen' (last word in a prayer).
'about' says the letters should be written in reverse.
'amen' in reverse letter order is 'nema'.
'e'+'nema'='ENEMA'
Can you help me to learn more?
(Other definitions for enema that I've seen before include "medicine to get you going" , "Medical liquid introduced anally" , "process to ensure evacuation" , "Liquid injection given as a laxative" , "Stern action from nurse perhaps" .)