Working space satellite capturing salt lake, as an example (7)
I believe the answer is:
ontario
'lake as an example' is the definition.
(Lake Ontario is one of the Great Lakes)
'working space satellite capturing salt' is the wordplay.
'working' becomes 'on'.
'space satellite' becomes 'io' (Io is a moon or satellite of Jupiter).
'capturing' means one lot of letters goes inside another.
'salt' becomes 'tar' ('tar' can be a synonym of 'salt').
'on'+'io'='onio'
'onio' placed around 'tar' is 'ONTARIO'.
(Other definitions for ontario that I've seen before include "Oration in Canadian province" , "part of Canada" , "Most easterly Great Lake" , "A North American lake" , "provincial area" .)