Related Clues:
- Ancient, say, going north, constrained by unstable load
- (Of days) past
- Senile
- Hallowed by antiquity
- Having been around for many years
- Wild clematis
- Of advanced years
- ___ days (time long past)
- Lasting from long ago
- Mossy
- Definitely not new
- Well-established
- Requiring many candles on a birthday cake
- Grate, with 'get,' or what this puzzle's theme answers get
- With 21-Across, senescence