Became aware of being defrosted (7)
I believe the answer is:
noticed
'became aware of' is the definition.
(I've seen this before)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for noticed that I've seen before include "Marked" , "Became aware of" , "Clocked" , "Detected" , "Realised" .)