Amazing fizzy drink gets a lot of criticism (9)
I believe the answer is:
fantastic
'amazing fizzy drink' is the definition.
'fantastic' can be an answer for 'amazing' (I've seen this before). I'm not certain of the 'fizzy drink' bit.
'gets a lot of criticism' is the wordplay.
'gets' becomes 'fanta' (I can't explain this - if you can you should give a lot more credence to this answer).
'a lot of' means to remove the last letter (most of the word but not all of it).
'criticism' becomes 'stick' (I've seen this before).
'stick' with its last letter removed is 'stic'.
'fanta'+'stic'='FANTASTIC'
(Other definitions for fantastic that I've seen before include "Extraordinarily good, tremendous" , "Weird" , "Extravagant, superb or beyond belief" , "Super!" , "Terrific" .)