Singer's feature in garage thus captivates you (6)
I believe the answer is:
caruso
'singer's' is the definition.
(opera singer Enrico Caruso)
'feature in garage thus captivates you' is the wordplay.
'feature in garage' becomes 'car' (a car might be stored in a garage).
'thus' becomes 'so' (synonyms).
'captivates' is an insertion indicator.
'you' becomes 'u' (I've seen this in other clues).
'car'+'so'='carso'
'carso' enclosing 'u' is 'CARUSO'.
(Other definitions for caruso that I've seen before include "Enrico ...... was famous Italian tenor" , "Opera singer" , "songster" , "Enrico ......, late great Italian tenor" , "Enrico -, twentieth century Italian tenor" .)