Does it limit the writer's movements? (3)
I believe the answer is:
pen
'limit the writer's movements?' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for pen that I've seen before include "Coop" , "Small enclosure" , "Confine the writer" , "Prison" , "record" .)