The most common and most likely answer to this crossword clue is the 7 letter word SUNLAMP
I've seen this crossword clue in The Guardian
S
U
N
L
A
M
P
More clues leading to the result SUNLAMP
- Glower as student group knocked over clock
- Light for a tanner
- Illumination from paper could be unhealthy
- Depression envelops lovelorn Nola Tanner
- Tanning device plus man for a massage
- Beaming type in the studio upset students — the French politician
- Star politician crossing city used for film-making, maybe
- Browner paper found by the French representative
- Boy reportedly left a British politician something found in a health club
Buddy explains!
The straight part
We know that "could be unhealthy" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case could be unhealthy = sunlamp.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 SUNLAMP mean?
SUNLAMP noun- A lamp that produces ultraviolet radiation; used for therapeutic or cosmetic purposes.
- A high-intensity lamp, used to produce an illusion of daylight.