Possible Clues:

• Full spectrum
• From __: completely
• One-volume encyclopedia range
• ___ Mysteries (children's series starting with 'The Absent Author')
• The works ... or how each set of circled letters in this puzzle is arranged
• All-encompassing phrase
• 1994 thesaurus, "Roget's ___"
• Encyclopedic range
• Literal gamut
• Completely, after 'from'