Complete freedom for cast (5)
I believe the answer is:
fling
'for cast' is the definition.
(both can mean to throw)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for fling that I've seen before include "Launch or propel" , "Throw as in Highland dance?" , "good time" , "Brief affair; throw" , "Throw angrily in spell of indulgent pleasure" .)