Cryptic crossword clue
A show of affection allowed? Bit of a nerve! 4

The most common and most likely answer to this crossword clue is the 4 letter word AXON

A
X
O
N

Buddy explains!

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 AXON mean?

AXON noun
  1. A nerve fibre which is a long slender projection of a nerve cell, and which conducts nerve impulses away from the body of the cell to a synapse.

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