The most common and most likely answer to this crossword clue is the 5 letter word NINTH
I've seen this crossword clue in Independent
N
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H
More clues leading to the result NINTH
- Place lightning struck partly sent skyward
- Selection of libation in the interval
- Hole in … in the middle, of course!
- Man in the orchestra playing Beethoven’s Choral Symphony
- Beethoven’s last?
- Plugging Isopon in the hole, about halfway round
- Ranked as a lower-order batsman, direction is to keep in — or out
- Is it parallel with 40?
- Note with suggestion to move hour to one past eighth
- Ordinal carried by clergyman, in theory
Buddy explains!

The straight part
We know that "(5)" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case (5) = ninth.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 NINTH mean?
NINTH noun- The person or thing in the ninth position.
- One of nine equal parts of a whole.
- The compound interval between any tone and the tone represented on the ninth degree of the staff above it, as between one of the scale and two of the octave above; the octave of the second, consisting of 13 or 14 semitones (called minor and major ninth).
- To lose a ninth
- To divide by nine
- The ordinal form of the number nine.