Gradate

7 clues
Arrange by rank
Arrange in steps
Arrange in degrees
Shade into one another
Pass slowly from one color to the next
Make a subtle transformation, as in color
Pass imperceptibly from one shade to another
Similar answers:
Absolutegravity
Academicgrades
Academicprogram
Acaudate
Accommodate
Accomodate
Acomputerdateis
Acowoncegrazed
Actofgrace
Adamsgrandson
Adate
Adayatthegraces
Aerialphotograph
Aerogram
Againstgrain
Againstthegrain
Aggrade
Aggrades
Aggrandize
Aggravate