Race dowager around a new door (6,6)
I believe the answer is:
french window
'door' is the definition.
(French window is an example)
'race dowager around a new' is the wordplay.
'race' becomes 'french' (I can't justify this - if you can you should give a lot more credence to this answer).
'dowager' becomes 'widow' (I've seen this before).
'around' is an insertion indicator.
'a new' becomes 'n' (common abbreviation eg NT for New Testament).
'widow' placed around 'n' is 'window'.
'french'+'window'='FRENCH WINDOW'
Can you help me to learn more?
(Other definitions for french window that I've seen before include "Patio door?" , "Glass door" , "Glazed door" , "Glazed way out to garden/balcony" .)