To the Spanish, she's a queen! (5)
I believe the answer is:
mabel
'a queen' is the definition.
Both the answer and definition are singular nouns.
Perhaps there's an association between them I don't understand?
'to the spanish she's' is the wordplay.
I cannot really understand how this works, but
'she' could be 'mab' and 'mab' is found in the answer.
'the spanish' could be 'el' ('the' in Spanish) and 'el' is located in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for mabel that I've seen before include "Girl" , "Musical, Mack & --" , "Lady" , "Mack's mate" , "maid in 'Separate Tables'" .)