Easy to take (5)
I believe the answer is:
light
This clue could be a double definition.
'easy' is the first definition.
(similar in meaning)
'take' is the second definition.
The definition and answer can be both related to change as well as being verbs in their base form.
Perhaps there's an association between them I don't understand?
'to' acts as a link.
Can you help me to learn more?
(Other definitions for light that I've seen before include "without difficulty" , "Window; insubstantial" , "Airy; not heavy" , "guide in the dark" , "weighing relatively little" .)