Noteworthy type of test can be checked again (10)
I believe the answer is:
remarkable
'noteworthy' is the definition.
(I know that noteworthy can be written as remarkable)
'type of test can be checked again' is the wordplay.
I cannot really see how this works, but
'can' could be 'able' (I've seen this before) and 'able' is located in the answer.
'again' could be 're' (prefix meaning 'again') and 're' is found within the answer.
The remaining letters 'mark' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for remarkable that I've seen before include "surprising?" , "Extraordinary" , "Striking" , "A wrongly-graded exam paper" , "Noteworthy" .)