The most common and most likely answer to this crossword clue is the 11 letter word CANDELABRUM
I've seen this crossword clue in The Times
C
A
N
D
E
L
A
B
R
U
M
More clues leading to the result CANDELABRUM
- Diabolical cur: damnable one made to support the wicked?
- A club dream, surprisingly, securing new lampholder
- Lamp-holder made by mad uncle involved with bar
- A number clad wrongly for stand with branches
- Vessel of French scientist’s workplace — odd thing hanging from ceiling
- Supporter of all things wicked?
Buddy explains!

The straight part
We know that "lampholder" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case lampholder = candelabrum.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 CANDELABRUM mean?
CANDELABRUM noun- A candle holder.