String of shops alongside beauty parlour (5)
I believe the answer is:
salon
'beauty parlour' is the definition.
(synonyms)
'string of shops alongside' is the wordplay.
'string of' indicates a hidden word (a string of letters from the clue).
'SALON' is hidden in the letters of 'shops alongside'.
(Other definitions for salon that I've seen before include "Large reception room" , "Reception room in grand house" , "Loans given to hairdressing establishment" , "beautician's premises" , "Loans for elegant guest room" .)