It's very wet in southeast central Spain (3)

I believe the answer is:

sea

I'm a little stuck... Click here to teach me more about this clue!

'it's very wet' is the definition.
I can't judge whether this definition defines the answer.

'southeast central spain' is the wordplay.
'southeast' becomes 'SE' (synonyms).
'central' says to take the centre.
The middle letter of 'spain' is 'a'.
'se'+'a'='SEA'

'in' acts as a link.

Can you help me to learn more?

(Other definitions for sea that I've seen before include "Cause of flooding" , "Large body of salt water" , "Watery expanse" , "Vast expanse" , "Cod's home?" .)

I've seen this clue in the Evening Standard.

Want a hint initially instead of a full solution? Install my app