Drinks like this turned blue (5)
I believe the answer is:
sodas
'drinks' is the definition.
(soda is a kind of drink)
'like this turned blue' is the wordplay.
'like this' becomes 'so' ('like so').
'turned' shows that the letters should be reversed in order.
'blue' becomes 'sad' (similar in meaning).
'sad' written backwards gives 'das'.
'so'+'das'='SODAS'
(Other definitions for sodas that I've seen before include "Fizzy drinks" , "Soft drinks" .)