Back in Spain they say it's very, very tasty! (3-3)
I believe the answer is:
yum-yum
'back in spain they say' is the definition.
I know nothing about this answer so I can't tell whether this works.
'very very tasty' is the wordplay.
'very very' becomes 'yum' (I can't explain this - if you can you should give a lot more credence to this answer).
'tasty' becomes 'yum' (I've seen this in another clue).
'yum'+'yum'='YUM-YUM'
'it's' is the link.
Can you help me to learn more?
(Other definitions for yum-yum that I've seen before include "Exclamation of pleasure at eating, from heroine of The Mikado" , "Exclamation of pleasure at taste sensation" , "One of the Three Little Maids from School - that's tasty!" , "Repetitive exclamation of pleasure at eating" , "A ward of Ko-Ko (The Mikado)" .)