The Observer's people with a view (9)
I believe the answer is:
onlookers
'the' is the definition.
I can't tell whether this defines the answer.
'observer's people with a view' is the wordplay.
'observer's people' becomes 'oners' (I am not sure about this - if you are sure you should believe this answer much more).
'with' means one lot of letters goes inside another.
'a view' becomes 'look' (I've seen this before).
'oners' going around 'look' is 'ONLOOKERS'.
Can you help me to learn more?
(Other definitions for onlookers that I've seen before include "Bystanders, rubber-neckers" , "Spectators" , "They watch" .)