Solutions Allowed but not obligatory has 9 entries with similar clues
- 4-letter words
- mustNecessary, obligatory thing
- 6-letter words
- exemptFreed from obligatory tax, etc.
- 7-letter words
- bindingObligatory
- 8-letter words
- optionalAvailable to be chosen but not obligatory
- emeritusHaving retired but allowed to retain title as an honour
- requiredObligatory
- 9-letter words
- mandatoryObligatory
- requisiteObligatory
- 10-letter words
- compulsoryObligatory