Has his order changed for condiment? (11)
I believe the answer is:
horseradish
'condiment?' is the definition.
(horseradish is a kind of condiment)
'has his order changed' is the wordplay.
'changed' is an anagram indicator.
'has'+'his'+'order'='hashisorder'
'hashisorder' anagrammed gives 'HORSERADISH'.
'for' acts as a link.
(Other definitions for horseradish that I've seen before include "type of sauce" , "Source of sauce to go with beef" , "Sharp-tasting condiment" , "that's hot" , "Root used in sauce" .)