It's said to be squeezed out (9)
I believe the answer is:
expressed
I believe this clue is a double definition.
'it's said' is the first definition.
(I've seen this before)
'be squeezed out' is the second definition.
(I've seen this before)
'to' is the link.
(Other definitions for expressed that I've seen before include "Squeezed out" , "Forced out" , "Said" , "Stated, uttered" , "Verbalised" .)