Free range eggs with nothing inside makes one cross (7)
I believe the answer is:
enrages
'makes one cross' is the definition.
(to enrage someone is to make them angry)
'free range eggs with nothing inside' is the wordplay.
'free' is an anagram indicator.
'with nothing inside' says to hollow out the word (remove centre letters).
'eggs' with its centre taken out is 'es'.
'range' anagrammed gives 'enrag'.
'enrag'+'es'='ENRAGES'
(Other definitions for enrages that I've seen before include "Works up" , "Makes red" , "Incenses" , "Infuriates" , "Makes violently angry" .)