The most common and most likely answer to this crossword clue is the 9 letter word PASTORALE
I've seen this crossword clue in The Sunday Telegraph
P
A
S
T
O
R
A
L
E
More clues leading to the result PASTORALE
- Finished exam with little energy for play
- Old-style exam initially exploring rural composition
- Former type of exam: English composition
- Musical work, formerly spoken start to elegy
- Piece of music over before spoken introduction to evensong
- Instrumental work in last opera composed
- Composition of beer given to minister
- Music said to get in the dough
Buddy explains!

The straight part
We know that "Instrumental work" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case instrumental work = pastorale.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 PASTORALE mean?
PASTORALE noun- A play or a musical product which has a pastoral subject.
- An artwork that is suggestive of pastoral themes.
- One of the figures of a quadrille.