The most common and most likely answer to this crossword clue is the 3 letter word LAY
I've seen this crossword clue in The Times
L
A
Y
More clues leading to the result LAY
- Impress after releasing singular song
- Release clutch like a pro? Hardly!
- Set down narrative poem for singing
- Place left another year, initially
- Amateur drama doesn’t start
- Arrange song
- Put down narrative poem
- Was lying like a minister? On the contrary
- Keep off the highway
- Parking spaces — store last of trolleys here!
Buddy explains!

The straight part
We know that "song" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case song = lay.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 LAY mean?
LAY noun- Arrangement or relationship; layout.
- A share of the profits in a business.
- A lyrical, narrative poem written in octosyllabic couplets that often deals with tales of adventure and romance.
- The direction a rope is twisted.
- A casual sexual partner.
- An act of sexual intercourse.
- A plan; a scheme.
- (uncountable) the laying of eggs.
- A layer.
- To place down in a position of rest, or in a horizontal position.
- To cause to subside or abate.
- To prepare (a plan, project etc.); to set out, establish (a law, principle).
- To install certain building materials, laying one thing on top of another.
- To produce and deposit an egg.
- To bet (that something is or is not the case).
- To deposit (a stake) as a wager; to stake; to risk.
- To have sex with.
- To take a position; to come or go.
- To state; to allege.
- To point; to aim.
- (ropemaking) To put the strands of (a rope, a cable, etc.) in their proper places and twist or unite them.
- To place and arrange (pages) for a form upon the imposing stone.
- To place (new type) properly in the cases.
- To apply; to put.
- To impose (a burden, punishment, command, tax, etc.).
- To impute; to charge; to allege.
- To present or offer.
- A lake.
- Not belonging to the clergy, but associated with them.
- Non-professional; not being a member of an organized institution.
- Not educated or cultivated; ignorant.
- To rest in a horizontal position on a surface.
- To be placed or situated.
- To abide; to remain for a longer or shorter time; to be in a certain state or condition.
- Used with in: to be or exist; to belong or pertain; to have an abiding place; to consist.
- Used with with: to have sexual relations with.
- Used with on/upon: to be incumbent (on); to be the responsibility of a person.
- To lodge; to sleep.
- To be still or quiet, like one lying down to rest.
- To be sustainable; to be capable of being maintained.
- A ballad or sung poem; a short poem or narrative, usually intended to be sung.
- A meadow; a lea.
- A law.
- An obligation; a vow.
- To don or put on (tefillin (phylacteries)).