Possible Clues:

• Not absolutely necessary
• Not totally necessary
• Unnecessary lesson at nine is arranged
• Unnecessary, one’s former nurse dipping into faulty Latin
• Sonnet line as revised becomes dispensable
• Suspect online assent is unimportant
• Superfluous, dispensable — no less innate
• It could be abandoned in Lent season
• Dispensable
• Not required, aliens sent on manoeuvres