Because the estate’s to be broken up, getting a preview (9)
I believe the answer is:
foretaste
'a preview' is the definition.
(I've seen this before)
'because the estate's to be broken up getting' is the wordplay.
'because' becomes 'for' (I've seen this before).
'to be broken up' is an anagram indicator.
'getting' says to put letters next to each other.
'estate' with letters rearranged gives 'etaste'.
'for'+'etaste'='FORETASTE'
(Other definitions for foretaste that I've seen before include "Appetiser" , "Advance sample" , "Brief experience of what is to come" , "Sample of something that lies ahead" , "Preview" .)