A woman could ride in one (5)
I believe the answer is:
habit
This clue could be a double definition.
'a woman' is the first definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
'ride in one' is the second definition.
The answer and definition can be both acts as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'could' is the link.
Can you help me to learn more?
(Other definitions for habit that I've seen before include "Custom, wont" , "Regular practice" , "Custom or monk's robe" , "Dress - custom - practice" , "Custom; riding dress" .)