Cairo man ordered an Italian dish (8)
I believe the answer is:
macaroni
'an italian dish' is the definition.
(type of pasta)
'cairo man ordered' is the wordplay.
'ordered' is an anagram indicator.
'cairo'+'man'='cairoman'
'cairoman' is an anagram of 'MACARONI'.
(Other definitions for macaroni that I've seen before include "Form of pasta" , "With which one tube-feeds" , "Thin tubes of pasta" , "sort of pasta" , "Long thin pasta" .)