Legendary outlaw has a flutter and cheats (9)
I believe the answer is:
hoodwinks
'cheats' is the definition.
(hoodwinking is a kind of cheating)
'legendary outlaw has a flutter' is the wordplay.
'legendary outlaw' becomes 'hood' (Robin Hood).
'has a flutter' becomes 'winks' (I am not sure about this - if you are sure you should believe this answer much more).
'hood'+'winks'='HOODWINKS'
'and' is the link.
Can you help me to learn more?
(Other definitions for hoodwinks that I've seen before include "gulls" , "pulls a fast one" , "Bamboozles" .)