3 down
By
way
of
review,
minus
changes
(2,3)
By way of review, minus changes (2,3)
hints
0
checks
0
hints
The definition is at the beginning of the clue.
How the clue works
The definition is By way of review — "in sum" meaning as a summary. Then "changes" is your anagram indicator, and it's signalling a reshuffle of MINUS, which gives you the answer.