Ray wrapped the sick in cloak (8)
I believe the answer is:
mantilla
'cloak' is the definition.
(I know that mantilla is a type of cape)
'ray wrapped the sick in' is the wordplay.
'ray' becomes 'manta' (manta is a kind of ray).
'wrapped the sick' becomes 'ill' (I can't explain this - if you can you should believe this answer much more).
'in' is an insertion indicator.
'manta' placed around 'ill' is 'MANTILLA'.
Can you help me to learn more?
(Other definitions for mantilla that I've seen before include "sort of scarf" , "head cover" , "Lace veil worn on head by Spanish women" , "Traditional Spanish lace scarf" , "Silk or lace headdress" .)