European champion who is clearing out his house? (7)
I believe the answer is:
evictor
'who is clearing out his house?' is the definition.
'european champion' is the wordplay.
'european' becomes 'e' (abbreviation e.g. EU).
'champion' becomes 'victor' (I've seen this before).
'e'+'victor'='EVICTOR'
(Other definitions for evictor that I've seen before include "He'll turn out" , "One turns out" , "Bailiff" , "One chucks out" , "He may put out" .)