Faded bucket, say (4)
I believe the answer is:
pale
'faded' is the definition.
(thesaurus)
'bucket say' is the wordplay.
'bucket' becomes 'pail' ('pail' can be a synonym of 'bucket').
'say' indicates a 'sounds like' (homophone) clue.
'pail' is a homophone of 'PALE'.
(Other definitions for pale that I've seen before include "Stake, lacking colour" , "Lightly coloured" , "A bit of fencing" , "Colourless" , "picket" .)