See great changes in government (8)
I believe the answer is:
steerage
'government' is the definition.
(I've seen this before)
'see great changes' is the wordplay.
'changes' is an anagram indicator.
'see'+'great'='seegreat'
'seegreat' anagrammed gives 'STEERAGE'.
'in' acts as a link.
(Other definitions for steerage that I've seen before include "cheap transport" , "Cheapest classes" , "Cheapest part of passenger ship" , "The cheapest fares" , "Part of ship with lowest fares" .)