Cryptic crossword clue
Murmur about a strange blemish or rash 5-6

The most common and most likely answer to this crossword clue is the 12 letter word HARUM-SCARUM

I've seen this crossword clue in The Guardian
H
A
R
U
M
-
S
C
A
R
U
M

Buddy explains!

The straight part
We know that "rash" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case rash = harum-scarum.
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 HARUM-SCARUM mean?

HARUM-SCARUM noun
  1. A giddy, rash person.
HARUM-SCARUM adjective
  1. Wild, careless, irresponsible
HARUM-SCARUM adverb
  1. Wildly, carelessly, irresponsibly

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