In town, he has everything (5)
I believe the answer is:
halle
'in town' is the definition.
The definition suggests a singular noun which matches the answer.
'he has everything' is the wordplay.
'has' is an insertion indicator.
'everything' becomes 'all' (I've seen this before).
'he' going around 'all' is 'HALLE'.
Can you help me to learn more?
(Other definitions for halle that I've seen before include "Manchester orchestra founder" , "Name of orchestra" , "Berry, possibly" , "Manchester's orchestra" , "Orchestra based in Manchester" .)