The most common and most likely answer to this crossword clue is the 5 letter word WHERE
I've seen this crossword clue in The Daily Telegraph
W
H
E
R
E
More clues leading to the result WHERE
- At which place heroin used to be around
- In place of whiskey, accept this
- 23 In the place our group entertained the woman
- Place question
- The place to put on costume in theatre
- At which point, that woman comes between you and me
- Question of location — somewhere in Herts, do we hear?
- At which point prostitute lacking love takes drug instead
- Vocal damage is in which place?
- The place that the woman held in my group
Buddy explains!

The straight part
We know that "Question of location" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case question of location = where.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 WHERE mean?
WHERE noun- The place in which something happens.
- Interrogative adverb, used in either a direct or indirect question: at what place; to what place; what place.
- In what situation.
- (relative) At which, on which.
- The place in which.
- While on the contrary; although; whereas.
- At or in which place or situation.
- To which place or situation.
- Wherever.
- In a position, case, etc., in which.