The most common and most likely answer to this crossword clue is the 5 letter word SLYER
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More clues leading to the result SLYER
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The straight part
We know that "having greater dexterity" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case having greater dexterity = slyer.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 SLYER mean?
SLYER adjective- Artfully cunning; secretly mischievous; wily.
- (having a positive sense) Dexterous in performing an action, so as to escape notice
- Done with, and marked by, artful and dexterous secrecy; subtle
- Light or delicate; slight; thin.