Red that has cream mixed in with it (7)
I believe the answer is:
carmine
'red' is the definition.
(I know that carmine is a type of red)
'cream mixed in with it' is the wordplay.
I cannot quite see how this works, but
'in' is within the answer.
an anagram of 'cream' is 'carme' which is within the left over letters.
No letters remain.
This explanation may well be incorrect...
'that has' is the link.
Can you help me to learn more?
(Other definitions for carmine that I've seen before include "Crimson pigment" , "Bright red" , "Vivid red colour" .)