The most common and most likely answer to this crossword clue is the 8 letter word UNICYCLE
I've seen this crossword clue in The Sunday Telegraph
U
N
I
C
Y
C
L
E
More clues leading to the result UNICYCLE
- Icy: uncle slipping about – hard to keep one’s balance on this
- What’s tricky to keep balanced in university round?
- Means of transport connected works with college
- On which I wheel away to my lectures?
- Likely to cause slip, relative coming round on this?
- Part of circus act, Sam perhaps nurses cold
- It’s hard to get on with family member nursing cold
- What may be ridden round by one, briefly?
- Relation may garage freezing cold vehicle for one
- Vehicle relative’s claimed difficult to balance on?
Buddy explains!

The straight part
We know that "It’s hard to get on" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case it’s hard to get on = unicycle.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 UNICYCLE mean?
UNICYCLE noun- A type of cycle that has only one wheel and is powered by pedals; it is most often used by acrobats.
- To travel or move around by unicycle.