Spend a lot, swell place obtained (7)
I believe the answer is:
splurge
'spend a lot' is the definition.
(I've seen this before)
'swell place obtained' is the wordplay.
I cannot really see how this works, but
'place' could be 'pl' (abbreviation used in postal addresses) and 'pl' is present in the answer.
'swell' could be 'surge' (I've seen this in another clue) and 'surge' is found within the leftover letters.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for splurge that I've seen before include "Fork out" , "Spend a lot" , "Ostentatious display" , "Orgy" , "Sudden burst of extravagance" .)