Frame deceitful sort, getting beheaded (5)
I believe the answer is:
easel
'frame' is the definition.
(I've seen this before)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for easel that I've seen before include "The rest of artists" , "artistic aid" , "supporter of the arts" , "Artist's canvas suppot" , "Display tripod" .)