The most common and most likely answer to this crossword clue is the 6 letter word SELECT
I've seen this crossword clue in Independent
S
E
L
E
C
T
More clues leading to the result SELECT
- Chinese lecturer’s housing of excellent quality
- Exclusive group includes heads of Labour Education Committee
- Odd characters from Leek involved in cult by choice
- Ready to cover the French correspondent’s first exclusive
- Choose to promote short and shocking treatment
- Pick and choose after start of sale
- Elite religious body infiltrated by the Spanish
- Choice of mains electricity
- Pick foreign article penned by dissenting group
- Elite party includes the French
Buddy explains!

The straight part
We know that "Choose" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case choose = select.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 SELECT mean?
SELECT verb- To choose one or more elements of a set, especially a set of options.
- To obtain a set of data from a database using a query.
- Privileged, specially selected.
- Of high quality; top-notch.