The most common and most likely answer to this crossword clue is the 4 letter word VOLT
V
O
L
T
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The straight part
We know that "Fencing dodge" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case fencing dodge = volt.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.
What does VOLT mean?
VOLT noun- In the International System of Units, the derived unit of electrical potential and electromotive force (voltage); the potential difference across a conductor when a current of one ampere uses one watt of power. Symbol: V
- A circular tread; a gait by which a horse going sideways round a centre makes two concentric tracks.
- A sudden movement to avoid a thrust.