Here are the possible solutions for what's grated from a citrus fruit's peel clue
Answer
Clue
Relevancy
zest
Clue
What's grated from a citrus fruit's peel
Enthusiasm — grated lemon peel
Grated citrus rind
lemonzest
Clue
Grated citrus peel
Tangy grated peel
kumquat
Clue
Citrus fruit whose peel is eaten
Definition
(Chinese) any of several small yellow to orange citrus fruits with sweet spongy rind and somewhat acid pulp that are used chiefly for preserves, also CUMQUAT