Space for the foreign copper joining new agency (6)
I believe the answer is:
lacuna
'space' is the definition.
(thesaurus)
'the foreign copper joining new agency' is the wordplay.
'the foreign' becomes 'la'.
'copper' becomes 'cu' (chemical symbol).
'joining' means one lot of letters go next to another.
'new agency' becomes 'na' (this could be a standard abbreviation which I don't know about).
'la'+'cu'+'na'='LACUNA'
'for' is the link.
Can you help me to learn more?
(Other definitions for lacuna that I've seen before include "A gap, maybe in a book" , "break" , "Hiatus - cavity" , "A gap, or section missing from a book" , "Blank gap or missing part" .)