Related Clues:
- Like a joke told far too often
- 'A-Levels? I'd swot!' - possibly that's traditional 'wisdom'
- Forbid a student flat
- Rusticate a student for being trivial
- To rusticate a student is commonplace
- Stale fruit mostly at bottom of bowl
- Senile
- Boringly familiar
- Wild clematis
- Of advanced years
- Mossy
- Definitely not new
- Requiring many candles on a birthday cake
- Grate, with 'get,' or what this puzzle's theme answers get
- With 21-Across, senescence