Sing about part of Italy (thus giving the location) (6)
I believe the answer is:
siting
'the location' is the definition.
(I've seen this before)
'sing about part of italy thus' is the wordplay.
'about' indicates putting letters inside.
'part of' suggests taking the first letters (I've seen 'part' mean this).
The first letters of 'italy thus' is 'it'.
'sing' enclosing 'it' is 'SITING'.
'giving' is the link.
(Other definitions for siting that I've seen before include "Placing in a specific location" , "Locating, positioning" , "Installing" .)