Possible Clues:

• Struggle through snow
• Stroll wearily
• March joylessly
• Auntie's boss will be taken in by genuine tramp
• Tenor is bad mannered about key produced by a giant, by the sound of it going walkabout
• Walk through deep mud, say
• The lowly worker — being released, he'd plod on
• Walk laboriously around, for example, Dublin, an old city, close to perfect
• Move through deep mud
• Tramp