The most common and most likely answer to this crossword clue is the 2 plus 3 letter word EL CID
I've seen this crossword clue in The Times
E
L
C
I
D
More clues leading to the result EL CID
- Role of Charlton police after soup stolen from bordello
- Line in US pursued by some police hero
- Spanish hero extremely equivocal with detectives
- Classic film festival allows in 50 approximately
- Castilian hero regularly sells child
- Hazard hampering Leander’s first return to see Hero
- Hero Elsie had declared
- Classic film festival admits 50, approximately
- Medieval hero unfortunately lied about first of conquests
- Retrospective focusing on Gaudi — clearly a Spanish hero
Buddy explains!

The straight part
We know that "Spanish hero" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case spanish hero = el cid.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.