Noise made by the greedy Conservative politician enthralling House (5)
I believe the answer is:
chomp
'noise made by the greedy' is the definition.
I can't tell whether this definition defines the answer.
'conservative politician enthralling house' is the wordplay.
'conservative' becomes 'C' (UK political abbreviation).
'politician' becomes 'MP' (Member of Parliament).
'enthralling' means one lot of letters goes inside another.
'house' becomes 'ho' (abbreviation for house).
'c'+'mp'='cmp'
'cmp' going around 'ho' is 'CHOMP'.
Can you help me to learn more?
(Other definitions for chomp that I've seen before include "Munch noisily (colloq.)" , "For crunch" , "Chew" .)