Old ladies supported by one who wears apron? (5)
I believe the answer is:
mason
'one who wears apron?' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'old ladies supported by' is the wordplay.
'old ladies' becomes 'mas' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'supported by' becomes 'on' (something on something else is supported by it).
'mas'+'on'='MASON'
Can you help me to learn more?
(Other definitions for mason that I've seen before include "one in construction" , "Jewish comedian" , "Stone-carver" , "Craftsman working in stone" , "one called Perry?" .)