Could a great ball be held under such a roof? (5)
I believe the answer is:
domed
'could a great ball' is the definition.
I can't tell whether this defines the answer.
'held under such a roof?' is the wordplay.
'held' becomes 'd' (I can't explain this - if you can you should believe this answer much more).
'under' is a charade indicator (letters next to each other).
'such a roof?' becomes 'dome' (dome is a kind of roof).
'd' after 'dome' is 'DOMED'.
'be' is the link.
Can you help me to learn more?
(Other definitions for domed that I've seen before include "not flat!" , "Shaped like rounded roof" , "Vaulted" , "with a meniscus" , "cupola" .)