Cryptic crossword clue
Inductance with volts DC – years since his power start-up 5,1

The most common and most likely answer to this crossword clue is the 5 plus 1 letter word HENRY V

I've seen this crossword clue in Financial Times
H
E
N
R
Y
V

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The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.
This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.

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