20 down
Mark
for
each
bolt
(7)
Mark for each bolt (7)
hints
0
checks
0
hints
The definition is at the end of the clue.
How the clue works
Look at bolt at the end — that's your definition, since it means to run away. The wordplay builds it up as SCAR (mark) followed by PER (for each), and there's your seven letters.