Composer employed in hotel garage (5)
I believe the answer is:
elgar
'composer' is the definition.
(Edward Elgar)
'employed in hotel garage' is the wordplay.
'employed in' indicates a hidden word.
'ELGAR' is hidden within 'hotel garage'.
(Other definitions for elgar that I've seen before include "Composer of Pomp and Circumstance marches, d. 1934" , "[NIMROD] 's creator" , "The 18 [APOSTLES] creator" , "Glare strangely at the English composer" , "Glare critically at the British composer" .)