Loco reverser may act with a bench (9)
I believe the answer is:
turntable
'loco reverser may' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'act with a bench' is the wordplay.
'act' becomes 'turn' (theatre).
'with' means one lot of letters go next to another.
'a bench' becomes 'table' (I've seen this in other clues).
'turn'+'table'='TURNTABLE'
Can you help me to learn more?
(Other definitions for turntable that I've seen before include "Revolving platform" , "it's spinning on the deck" , "On which a railway engine or a record spins" , "part of record player" , "For records" .)