The most common and most likely answer to this crossword clue is the 1 plus 4 plus 2 plus 7 plus 4 letter word A NAME TO CONJURE WITH
I've seen this crossword clue in The Guardian
A
N
A
M
E
T
O
C
O
N
J
U
R
E
W
I
T
H
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.