Prepared toast, free sample (9)
I believe the answer is:
foretaste
'sample' is the definition.
(I've seen this before)
'prepared toast free' is the wordplay.
'prepared' is an anagram indicator.
'toast'+'free'='toastfree'
'toastfree' with letters rearranged gives 'FORETASTE'.
(Other definitions for foretaste that I've seen before include "A sample of what could be" , "Sample of something that lies ahead" , "Appetiser" , "Early experience" , "Sample of something to come" .)