Nurse is from Spain in the writing study (8)
I believe the answer is:
treatise
'writing study' is the definition.
'treatise' can be an answer for 'writing' (I've seen this before). I'm not sure about the 'study' bit.
'nurse is from spain' is the wordplay.
'nurse' becomes 'treat' (I've seen this before).
'from' says to put letters next to each other.
'spain' becomes 'e' (abbreviation for Espana).
'treat'+'is'+'e'='TREATISE'
'in the' acts as a link.
Can you help me to learn more?
(Other definitions for treatise that I've seen before include "Thesis" , "Long, detailed essay" , "Written study" , "theory" , "Learned written work" .)