Possible Clues:

• Kent keeper and Yorkshire opener, like my problem
• Difficult - having hard lumps (of wood)
• Like a cat's cradle, hard to explain
• Difficult - intricate
• Such problems as Houdini had to deal with?
• Difficult (point)
• Difficult 'problem'
• Difficult piece of work? Not typically
• Awkward having granny for one ultimately fraught year
• Difficult, rugged or intricate