Cryptic crossword clue
Radio taxi carrying just a bit 4

The most common and most likely answer to this crossword clue is the 5 plus 1 letter word IOTA} –

I've seen this crossword clue in The Daily Telegraph
I
O
T
A
}
â
€
“

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 IOTA} – mean?

IOTA} – noun
  1. The ninth letter of the Greek alphabet.
  2. A jot; a very small, insignificant quantity.

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