The most common and most likely answer to this crossword clue is the 6 letter word REVAMP
I've seen this crossword clue in Independent
R
E
V
A
M
P
More clues leading to the result REVAMP
- Minister, a politician providing overhaul
- Pimp linking minister to a parliamentarian
- Update backing state politician
- Do up bows of each vessel within slipway
- Do up theatre about five in the morning
- Vicar gets electronic kit to modernize
- Modernise the vicar’s sermon distribution system
- Update from vicar and a politician
- Update about America received by Vice President
- Vicar meets a politician and pimp
Buddy explains!

The straight part
We know that "Update" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case update = revamp.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 REVAMP mean?
REVAMP noun- A renovation, revision or improvement.
- To renovate, revise, improve or renew.