Root bats, getting runs: this one turns! (5)
I believe the answer is:
rotor
'this one turns' is the definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.
'root bats getting runs' is the wordplay.
'bats' is an anagram indicator (slang for mad).
'getting' indicates putting letters inside.
'runs' becomes 'r' (cricket abbreviation).
'root' with letters rearranged gives 'otor'.
'otor' placed around 'r' is 'ROTOR'.
Can you help me to learn more?
(Other definitions for rotor that I've seen before include "Mechanical part that revolves, an acronym" , "Turning blade" , "Bit of chopper" , "The machine part moves in a circle" , "Eddy" .)