Puzzling question (6)
'puzzling question' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for riddle that I've seen before include "Screen" , "Brain-teaser and coarse sieve" , "sort out" , "Kind of puzzle or coarse sieve" , "Strain" .)
(Other definitions for teaser that I've seen before include "One who pulls someone's leg" , "You must be kidding!" , "Tricky question; intriguing ad" , "Introduction to arouse curiosity" , "One who irritates playfully" .)
'puzzling question' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for poser that I've seen before include "Particularly baffling problem" , "Exhibitionist" , "Puzzle using ropes" , "Hard question" , "Tricky question" .)