Cryptic crossword clue
Fantastic sermon, gents being spellbound? 11

The most common and most likely answer to this crossword clue is the 11 letter word ENGROSSMENT

I've seen this crossword clue in The Daily Telegraph
E
N
G
R
O
S
S
M
E
N
T

Buddy explains!

The straight part
We know that "being spellbound" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case being spellbound = engrossment.
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 ENGROSSMENT mean?

ENGROSSMENT noun
  1. The state of being engrossed; concentration or preoccupation.
  2. The fact or instance of writing in a legal document.

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