The most common and most likely answer to this crossword clue is the 6 letter word HICCUP
H
I
C
C
U
P
More clues leading to the result HICCUP
- Minor setback here in ancient Rome over award
- Amongst classicists this prize competition is to falter
- Stylish top moves to bottom on getting high – a setback
- A glitch, this, one’s lot in life
- Involuntary noise greeting cricket club winning
- Slight problem with award after chick goes naked
- Bit of a problem greeting captain initially on vessel
- . Edges off solid vessel — that's a minor problem
- Thick-skinned copper approaching chief of police with a problem
- Obstacle being chic?
Buddy explains!

The straight part
We know that "Obstacle" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case obstacle = hiccup.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 HICCUP mean?
HICCUP noun- A spasm of the diaphragm, or the resulting sound.
- (by extension) Any spasm or sudden change.
- A minor setback.
- To produce a hiccup; have the hiccups.
- To say with a hiccup.
- To produce an abortive sound like a hiccup.