The most common and most likely answer to this crossword clue is the 7 letter word ELEGIAC
I've seen this crossword clue in The Daily Telegraph
E
L
E
G
I
A
C
More clues leading to the result ELEGIAC
- Sad European stage where you’ll find rabble
- Recalled church keeping fine set of valedictory works
- Upset, this person enters bars lonesome, empty and sad
- Legacies largely corrupt – sad
- Mournful key member CIA outed
- Lamb catches, say, cold, becoming plaintive
- Soldier in middle of foreign field, cold and mournful
- Doleful, the Spanish setter interrupts rising composer
- Upsets Alice, for example, describing poetry
- Sad hesitance regularly envelops cricket side
Buddy explains!

The straight part
We know that "Valedictory" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case valedictory = elegiac.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 ELEGIAC mean?
ELEGIAC noun- A poem composed in the couplet style of classical elegies: a line of dactylic hexameter followed by a line of dactylic pentameter.
- Of or relating to an elegy.
- Expressing sorrow or mourning.