Is he especially saintly to Spanish children? (5)
I believe the answer is:
santa
'is he especially saintly to spanish children?' is the definition.
The definition suggests a singular noun which matches the answer.
This is all the clue.
Can you help me to learn more?
(Other definitions for santa that I've seen before include "generous figure" , "Saint Nicholas" , "Children's name for Mr Claus" , "& 22 Father Christmas" , "Man with sack" .)