Dubious character of tornado (7)
I believe the answer is:
twister
'tornado' is the definition.
(I know that tornado can be written as twister)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for twister that I've seen before include "See 12" , "'sixties dancer?" , "Crook - tornado" , "A swindler or a cyclone" , "Colloquial name for a tornado" .)