Preserve a form of service in honour of noted artist (9)
I believe the answer is:
canaletto
'noted artist' is the definition.
'canaletto' can be an answer for 'artist' (I've seen this before). I'm not sure about the 'noted' bit.
'preserve a form of service in honour of' is the wordplay.
'preserve' becomes 'can' (canning is a kind of preserving).
'form of service in honour' becomes 'lett' (I can't justify this - if you can you should give a lot more credence to this answer).
'of' becomes 'o''.
'can'+'a'+'lett'+'o'='CANALETTO'
Can you help me to learn more?
(Other definitions for canaletto that I've seen before include "Eighteenth century artist associated with Venice" , "C 18 Italian artist" , "old master?" , "Master of the canvas" , "One who painted" .)