Possible Clues:

• It's wrong following gang in Scotland!
• Errant, to Burns
• Off, to Burns
• Burns out of kilter
• 'The best-laid schemes o' mice an' men gang aft --'
• Awry, to Burns
• '...gang aft ___': Burns
• Silver grass all over the place
• 'Best laid schemes. . .Gang aft ___' (Burns)
• 'Best laid schemes ... gang aft ____ '