Glass vase broken, son dropped here, you bet! (3,5)
I believe the answer is:
las vegas
'dropped here you bet' is the definition.
The answer is a location as well as being a singular noun. This is suggested by the definition.
'glass vase broken son' is the wordplay.
I cannot quite understand how this works, but
an anagram of 'vase' is 'asve' which is within the answer.
'son' could be 's' (genealogical abbreviation for son) and 's' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for las vegas that I've seen before include "Nevadan city" , "Nevada resort" , "US gambling city" , "US gambling centre" , "Nevada city famed for casinos" .)