Copper in Sun turning up in this place (5)
I believe the answer is:
locus
'this place' is the definition.
('place' in Latin)
'copper in sun turning up' is the wordplay.
'copper' becomes 'Cu' (chemical symbol).
'in' indicates putting letters inside.
'sun' becomes 'sol' (Latin for 'sun').
'turning up' says the letters should be written backwards.
'sol' reversed gives 'los'.
'cu' going within 'los' is 'LOCUS'.
'in' acts as a link.
(Other definitions for locus that I've seen before include "Particular point" , "Range - place" , "Place, site" , "line" , "Particular position (of something)" .)