Related Clues:
- Not likely to pipe up
- Unlikely to make the first move
- Uneffusive
- Like some debts
- Honorary
- Make pun with help from voluntary work
- Embarrassed at call for silence at journey's end
- Just short of retiring
- Not at all forward
- Shunning the spotlight, maybe
- Lacking the required funds
- Unlikely to streak
- Leery of being noticed, maybe
- Averse to mingling
- Bashful