Aged fool dances inside it (3)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
old
'it' is the definition.
The definition suggests a singular noun which matches the answer.
'aged fool dances inside' is the wordplay.
'inside' indicates a hidden word.
'OLD' is hidden within 'aged fool dances'.
Can you help me to learn more?
(Other definitions for old that I've seen before include "Long-established" , "Stale" , "SECOND PART OF 14" , "No longer young" , "Ancient" .)