The most common and most likely answer to this crossword clue is the 5 letter word UNITE
I've seen this crossword clue in The Times
U
N
I
T
E
More clues leading to the result UNITE
- Join a Parisian welcoming computers etc.
- Marry supporter of international organisation?
- Join one end, firstly
- Join one female in Paris welcoming sex
- Join university with term half gone
- Join military group, European
- Join military division close to home
- Combine having some fun, it entertains
- Join squad, English
- Join military detachment close to base
Buddy explains!

The straight part
We know that "Combine" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case combine = unite.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 UNITE mean?
UNITE noun- A British gold coin worth 20 shillings, first produced during the reign of King James I, and bearing a legend indicating the king's intention of uniting the kingdoms of England and Scotland.
- To bring together as one.
- To come together as one.