Possible Clues:

• Extending across something
• Cross with tutors ignoring the compiler's doggerel, say
• Executed save oddly blocking short cross
• Performed save oddly in sharp cross
• Cross lines after locomotive's dropped one off
• Headed over save, oddly, in short cross
• Oblique poetry on coaches one's forgotten
• Cross pass through crossing both poles
• Cross including two poles placed crosswise!
• Cross stars never get sacked