Crossword Genius

Something good which also has disadvantages (5,8)

Ross

I believe the answer is:

mixed blessing

(Other definitions for mixed blessing that I've seen before include "Event with cons as well as pros" , "It has good and bad points" , "something that has pros and cons?" , "Something with both advantages and disadvantages" , "Event or situation having advantages and disadvantages" .)

I've seen this clue in the Sydney Morning Herald.
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