The most common and most likely answer to this crossword clue is the 11 letter word LILLIPUTIAN
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More clues leading to the result LILLIPUTIAN
Buddy explains!

The straight part
We know that "Tiny" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case tiny = lilliputian.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 LILLIPUTIAN mean?
LILLIPUTIAN noun- A very small person or being.
- (genetics) A fruit fly gene that, when mutated, makes cells abnormally small. See AFF2.
- Very small, diminutive
- Trivial, petty