Power to send off by cable (7)
I believe the answer is:
towrope
'cable' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'power to send off' is the wordplay.
'send off' indicates an anagram (I've seen 'sent off' mean this).
'power'+'to'='powerto'
'powerto' anagrammed gives 'TOWROPE'.
'by' is the link.
Can you help me to learn more?
(Other definitions for towrope that I've seen before include "Cable used after breakdowns" , "AA might assist with this" , "Pulling cable" , "This may be used by a recovery vehicle" , "What may pull broken-down vehicle" .)