Tool to measure energy new refrigerator initially consumes (7)
I believe the answer is:
spanner
'tool' is the definition.
(spanner is a kind of tool)
'measure energy new refrigerator initially consumes' is the wordplay.
'measure' becomes 'span' (span is a kind of measure).
'energy' becomes 'e' (physics symbol as in E=mcp).
'initially' indicates taking the first letters.
'consumes' indicates putting letters inside.
The initial letters of 'new refrigerator' is 'nr'.
'e' going inside 'nr' is 'ner'.
'span'+'ner'='SPANNER'
'to' is the link.
(Other definitions for spanner that I've seen before include "Tool, often adjustable" , "Wrench for nuts" , "Nut tightener" , "Tool for tightening or loosening" , "Nut-tightening tool" .)