Frog painter (6)
I believe the answer is:
hopper
This clue is a double definition.
'frog' is the first definition.
(thesaurus)
'painter' is the second definition.
(thesaurus)
(Other definitions for hopper that I've seen before include "Kentish farm" , "one making short trip?" , "Edward ..., American realist painter" , "Cricket, perhaps" , "Edward --, US artist" .)