Painter of cattle on a spread (9)
I believe the answer is:
canaletto
'painter' is the definition.
(I've seen this before)
'cattle on a spread' is the wordplay.
'spread' indicates an anagram.
'cattle'+'on'+'a'='cattleona'
'cattleona' with letters rearranged gives 'CANALETTO'.
'of' acts as a link.
(Other definitions for canaletto that I've seen before include "Eighteenth century artist associated with Venice" , "Master of the canvas" , "Venetian painter" , "old master?" , "C 18 Italian artist" .)