Garage facility, RAC recalled, used to be hotel (7)

'garage facility' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'rac recalled used to be hotel' is the wordplay.
'recalled' says the letters should be written in reverse (to recall can mean to bring something back).
'used to be' becomes 'was' (eg 'he was...' means 'he used to be...').
'hotel' becomes 'h' (phonetic alphabet: alpha, bravo, charlie etc.).
'rac' written backwards gives 'car'.
'car'+'was'+'h'='CARWASH'

Can you help me to learn more?