The most common and most likely answer to this crossword clue is the 6 letter word RUN-UP
I've seen this crossword clue in Independent
R
U
N
-
U
P
More clues leading to the result RUN-UP
- Endlessly regret joke about speed merchant’s approach
- Quickly make approach
- Manage at university — so don't ***-** debts?
- Buzzed after striking golf approach
- Hurriedly make an approach
- Quickly make approach
- Laid-back attempt at humour with original approach
- Hoist ladder at university
- Trip over in bowler’s approach
- Quickly make an approach
Buddy explains!

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 RUN-UP mean?
RUN-UP noun- The approach run of a bowler before delivering the ball
- The approach run of a high jumper or other athlete in order to gather speed or momentum
- A period of time just before an important event.
- An increase in the value or amount of something