A Welsh girl supplies this type of spicy food (5)
I believe the answer is:
asian
'this type of spicy food' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'a welsh girl' is the wordplay.
'welsh girl' becomes 'Sian' (common Welsh name).
'a'+'sian'='ASIAN'
'supplies' acts as a link.
Can you help me to learn more?
(Other definitions for asian that I've seen before include "Relating to one continent" , "Continental native" , "From Bangladesh, say" , "Eastern national" , "Relating to one of the continents" .)