The most common and most likely answer to this crossword clue is the 4 plus 4 letter word HEAT RASH
I've seen this crossword clue in Financial Times
H
E
A
T
R
A
S
H
More clues leading to the result HEAT RASH
- Eruption from explosive with a wreck below
- The man with a rubbish skin problem
- Briefly try to pour scorn on source of irritation
- Vacuous homage a nonsense, irritating thing
- The fellow with rubbish picks up a dermatological disorder
- The physical consequence of a passion that’s reckless?
- Heart has failed leading to an inflammatory condition
Buddy explains!
The straight part
We know that "skin problem" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case skin problem = heat rash.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.