The most common and most likely answer to this crossword clue is the 10 letter word SURPRISING
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More clues leading to the result SURPRISING
- Teacher reportedly using force? That's unexpected
- Unexpected, small rebellion involving Republican
- Unexpected resistance crushed by leader of Spanish revolution
- Funny socialists ultimately revolt, seizing power at last
- Small rebellion keeps Republican staggering
- Remarkable Parisian on piano, soaring
- Unexpected second rebellion involving leader of rebels
- Ring-leader captured in small revolt — that’s unexpected
- Southern rebel leader in violent revolt — that’s unusual
- . Knight price-fixing, outcry not quite as you imagined it
Buddy explains!

The straight part
We know that "Unexpected" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case unexpected = surprising.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 SURPRISING mean?
SURPRISING verb- To cause (someone) to feel unusually alarmed or delighted by something unexpected.
- To do something to (a person) that they are not expecting, as a surprise.
- To undergo or witness something unexpected.
- To cause surprise.
- To attack unexpectedly.
- To take unawares.
- A situation in which somebody is surprised.
- Causing surprise.