The most common and most likely answer to this crossword clue is the 11 letter word ENCHANTMENT
I've seen this crossword clue in The Daily Telegraph
E
N
C
H
A
N
T
M
E
N
T
More clues leading to the result ENCHANTMENT
Buddy explains!
The straight part
We know that "Transport in fairyland" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case transport in fairyland = enchantment.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 ENCHANTMENT mean?
ENCHANTMENT noun- The act of enchanting or the feeling of being enchanted.
- Something that enchants; a magical spell.