Mud Wall
Earthen Wall
noun
A soil fence is a fence made from soil. Usually this is in the form of a mud wall or an earthen wall.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own. Watch out for the rendaku.
あなたの家の土塀をよじ登っている人がいたので、それをお知らせするためにお電話させて頂きました。
I’m calling to let you know that I noticed someone climbing up your mud wall.