Newly target officials restricting old copper (7)
I believe the answer is:
refocus
'newly target officials restricting old copper' is the definition.
I can't judge whether this definition defines the answer.
'officials restricting old copper' is the wordplay.
'officials' becomes 'refs' (ref is a kind of official).
'restricting' means one lot of letters goes inside another.
'old' becomes 'o' (common abbreviation eg in OE for Old English).
'copper' becomes 'cu' (chemical symbol).
'o'+'cu'='ocu'
'refs' enclosing 'ocu' is 'REFOCUS'.
Can you help me to learn more?
(Other definitions for refocus that I've seen before include "Adjust lens again" , "Concentrate again" , "As photographer may have to" , "aim again" , "Shift one's attention" .)