Possible Clues:

• Musical instruction unfortunately at an end
• Rather slow, and not before the end
• 'Play this slowly before it, too (7)'
• For players, rather slow with advance payment
• An Italian poet gets rather slow in time
• Adagio-allegretto go-between
• Sort of movement created by a new Italian poet
• Many uncovered poet quite slowly
• Joiner getting worker's point fairly slowly
• Moving slowly, desperate man's held by stake