Riga resident
'riga resident' is the definition.
(Lett can mean a Latvian - Riga is in Latvia)
This is all the clue.
(Other definitions for lett that I've seen before include "East European" , "Native of Latvia" , "Balt" , "northerner" , "Baltic citizen" .)
'riga resident' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for latvian that I've seen before include "From one of the Baltic states" , "Nationality of citizen of Riga" , "Eg, native of Riga" , "who lives in ex-Communist country?" , "Riga resident" .)