Answer:

regrade

Answer	Crossword Clue
REGRADE	Alter the landscaping, in a way
REGRADE	Go over a test paper again, perhaps
REGRADE	Mark again

REGRADE	Apply a curve to, perhaps
REGRADE	Do a road job
REGRADE	Assign to new categories
REGRADE	Change a letter, perhaps
REGRADE	Score again, as an exam
REGRADE	College student's request
REGRADE	Move from A to B, say
REGRADE	Score again, as a test paper