Pitch error Lulu occasionally makes (4)
I believe the answer is:
roll
'pitch' is the definition.
(thesaurus)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for roll that I've seen before include "See 19" , "Bun" , "Official list of members" , "on which one is regularly successful" , "Revolve - piece of bread" .)