Precise arrangement used by those who prepare food (7)
I believe the answer is:
recipes
'by those who prepare food' is the definition.
I can't judge whether this defines the answer.
'precise arrangement' is the wordplay.
'arrangement' indicates an anagram.
'precise' anagrammed gives 'RECIPES'.
'used' is the link.
Can you help me to learn more?
(Other definitions for recipes that I've seen before include "instructions for cook" , "Directions for the cook" , "Directions for making a dish" , "Pierces to find formulas" , "Instructions for dishes" .)