"That she made" is the adjective clause.
"Suggestions" is the words it modifies.
Adjective clauses are groups of related words that contain a subject and a verb and modify a noun. Adjective clauses are dependant clauses.
In this example the word "suggestions" is the noun that is being modified by the adjective clause.
"He looks more like a grocer than a burglar." Meaning that he thinks the Gandalf picked the wrong person to lead out the adventure.
Write their government officials to ask for policy changes
fund cancer research for children affected by pesticides
join demonstrations in Selma, Alabama
boycott table grapes.