The most common and most likely answer to this crossword clue is the 6 letter word REHASH
I've seen this crossword clue in The Times
R
E
H
A
S
H
More clues leading to the result REHASH
- Recycled material this chap turned into hives?
- Not thinking about what constitutes a make-over
- Not thinking about what constitutes make-over
- Go over what appears in eruption
- Unoriginal work theatre has hosted in part
- Hears about hard old stuff that’s just been changed slightly
- What feeds ill-considered second use of an idea?
- What appears in ill-advised reworking of material
- What’s in reckless representation of old work
- Modified version has her confused
Buddy explains!

The straight part
We know that "make-over" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case make-over = rehash.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 REHASH mean?
REHASH noun- Something reworked, or made up from old materials.
- A recomputation of the structure of a hash table, taking into account any newly added items.
- To repeat with minor variation.
- To analyze a prior contentious or embarrassing event.
- To recompute the structure of a hash table, taking into account any newly added items.