Name the Spanish bird flying west (5)
I believe the answer is:
title
'name' is the definition.
(eg the name of a book)
'the spanish bird flying west' is the wordplay.
'the spanish' becomes 'el' ('the' in Spanish).
'bird' becomes 'tit' (tit is a kind of bird).
'flying west' shows that the letters should be reversed in order (letters written right to left or east to west).
'el'+'tit'='eltit'
'eltit' reversed gives 'TITLE'.
(Other definitions for title that I've seen before include "Name - legal right" , "Document showing legal right to possess a property" , "headline?" , "Lord, sir or doctor, say" , "Legal document regarding transfer of ownership: appellation" .)