Refers to the use of a certain song or cue during the end titles of a film. In most cases this is considered a featured use since the music build the primary focus during these end credits.
In licensing, Composition refers to the melody, the notes (the copyrighted work). In advertising, it can also refer to a song that is being done by a composer (a custom made song).
The rights to the composition and the lyrics, usually owned by the publishing company.
Typically prepared by the music editor it refers to an information document about the cue (i.e. music) being used in a film. It is the basic for publishers to collect performance royalties. The cue sheet states the composer, the publishing company, the affiliated performance rights organisation, the title, length as actually used in the film and the type of use (background vocal, background instrumental, visual vocal, visual instrumental, featured use).
Is a shorter edit of an existing script of a commercial. E.g if the main version is 30 seconds there can exist a shorter version made out of the 30 second imagery.