Unusual way to cook meat (4)
I believe the answer is:
rare
'unusual' is the definition.
(I've seen this before)
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for rare that I've seen before include "Choice - lightly cooked - thin" , "few and far between" , "difficult to find?" , "'Unusual, uncommon (4)'" , "Scarce as hen's teeth!" .)