Related Clues:

• Old Norse character - a prickly type
• Henry brought in rent for Spike
• Prickly tree
• Spine, thorn
• Norse god's name in runic character
• Runs into mischievous child to make sharp point
• Colleague's work goes in two directions
• Spine; old letter
• Old character an irritation when in one's side
• Plant spine; old letter
• Sharp point on, eg, rose
• Henry's going into rent projection for plant
• Prickly old character
• Plant spine
• Run into difficulty that may be a bit of a pain