"The Jumblies" poet (4)
I believe the answer is:
lear
'the jumblies poet' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for lear that I've seen before include "hardly the 7 [NO NONSENSE] type!" , "of poetry?" , "Role at Stratford" , "Shakespeare's tragic king (4)" , "The Bard's foolish king" .)