Noise coming from the engine room at five (5)
I believe the answer is:
vroom
'noise coming from the engine room at five' is the definition.
I can't tell whether this defines the answer.
'room at five' is the wordplay.
'at' says to put letters next to each other (I've seen this in other clues).
'five' becomes 'V' (Roman numeral).
'room' put after 'v' is 'VROOM'.
Can you help me to learn more?
(Other definitions for vroom that I've seen before include "Exclamation imitating a revving car" , "vehicle's noise" , "roar away" , "Sound of a car speeding away" , "Fast-moving car noise" .)