To cut disease, eat fish (8)
I believe the answer is:
sardines
'fish' is the definition.
(I've seen this before)
'to cut disease eat' is the wordplay.
'to cut' means to remove the last letter.
'disease' becomes 'sars' (Severe Acute Respiratory Syndrome).
'eat' becomes 'dines' (I can't explain this - if you can you should believe this answer much more).
'sars' with its final letter taken away is 'sar'.
'sar'+'dines'='SARDINES'
Can you help me to learn more?
(Other definitions for sardines that I've seen before include "Cumulative hiding game" , "Children's game - fish" , "Small fish, usually canned" , "Young pilchards" , "Squash-together party game" .)