Barrier placed around Lima or another city (8)
I believe the answer is:
florence
'another city' is the definition.
'Florence' can be an answer for 'city' (Florence is an example). I'm not certain of the 'another' bit.
'barrier placed around lima or' is the wordplay.
'barrier' becomes 'fence' (fence is a kind of barrier).
'placed around' is an insertion indicator.
'lima' becomes 'L' (phonetic alphabet: alpha, bravo, charlie etc.).
'l'+'or'='lor'
'fence' placed around 'lor' is 'FLORENCE'.
Can you help me to learn more?
(Other definitions for florence that I've seen before include "place in Italy" , "foreign city" , "The familiar Miss Nightingale, famous nurse" , "City on R. Arno" , "Name of girl ? city" .)