Avenge criminal in lakeside location (6)
I believe the answer is:
geneva
'lakeside location' is the definition.
'Geneva' can be an answer for 'location' (Geneva is an example). I'm unsure of the 'lakeside' bit.
'avenge criminal' is the wordplay.
'criminal' indicates an anagram.
'avenge' anagrammed gives 'GENEVA'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for geneva that I've seen before include "Avenge (anag) - type of gin" , "Alpine lake" , "Swiss city/lake" , "European city" , "International agreement on the treatment of civilians and captured or wounded military personnel in wartime" .)