What Spaniards use on a Greek character creates resentment (5)
I believe the answer is:
pique
'resentment' is the definition.
(I've seen this in another clue)
'what spaniards use on a greek character' is the wordplay.
I cannot really understand how this works, but
'character' could be 'pi' (pi is a kind of character) and 'pi' is present in the answer.
The remaining letters 'que' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'creates' is the link.
Can you help me to learn more?
(Other definitions for pique that I've seen before include "Petulant anger" , "Slight reaction" , "Wound (pride); resentment" , "Needle" , "Animosity" .)