Preserves some tricky situations (7)
I believe the answer is:
pickles
'preserves' is the definition.
(pickling is a kind of preserving)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for pickles that I've seen before include "Preserves in vinegar or brine" , "Vegetables preserved in vinegar or brine" .)