She makes the Spanish chicken out! (5)
I believe the answer is:
helen
'she' is the definition.
'the spanish chicken out' is the wordplay.
'the spanish' becomes 'el' ('the' in Spanish).
'chicken' becomes 'hen' (hen is a kind of chicken).
'out' is an insertion indicator.
'el' put inside 'hen' is 'HELEN'.
'makes' is the link.
(Other definitions for helen that I've seen before include "Famous beauty of Troy" , "Woman who launched a thousand ships?" , "Beautiful daughter of Zeus and Leda who was abducted by Paris" , "Immortal beauty of Troy" , "Trojan war beauty" .)