Change political party (6)
I believe the answer is:
reform
This could be a double definition.
'change' is the first definition.
(reform is a kind of change)
'political party' is the second definition.
Although both the answer and definition are singular nouns, I cannot see how they can define each other.
Can you help me to learn more?
(Other definitions for reform that I've seen before include "Go straight" , "Change one's ways (for the better?)" , "Correct(ion of) abuses" , "Mend one's ways" , "Removal of abuses" .)