Striking, like schoolwork submitted a second time? (10)
I believe the answer is:
remarkable
'striking' is the definition.
(I've seen this before)
'schoolwork submitted a second time?' is the wordplay.
I cannot quite see how this works, but
'a' is within the answer.
'second' could be 're' (prefix meaning second in eg review, re-education) and 're' is located in the answer.
This explanation may well be incorrect...
'like' acts as a link.
(Other definitions for remarkable that I've seen before include "A wrongly-graded exam paper" , "Extraordinary" , "surprising?" , "unusual" , "Noteworthy" .)