Curtails the brigade's movements (8)
I believe the answer is:
abridges
'curtails' is the definition.
The definition and answer can be both related to change as well as being verbs in their -s form.
Maybe there's a link between them I don't understand?
'brigade's movements' is the wordplay.
'movements' is an anagram indicator (I've seen 'movement' mean this (letters move around)).
'brigades' with letters rearranged gives 'ABRIDGES'.
'the' acts as a link.
Can you help me to learn more?
(Other definitions for abridges that I've seen before include "Shortens" , "Makes short work of" .)