She visits the sick to tend Sir Curtis somehow (8,5)
I believe the answer is:
district nurse
'she visits the sick' is the definition.
I know nothing about this answer so I can't judge whether this works.
'tend sir curtis somehow' is the wordplay.
'somehow' is an anagram indicator.
'tend'+'sir'+'curtis'='tendsircurtis'
'tendsircurtis' anagrammed gives 'DISTRICT NURSE'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for district nurse that I've seen before include "Itinerant local health worker" , "care provider" , "One tending patients in their homes" , "NHS employee" , "Local medical worker" .)