Story that may be "tall" (4)
I believe the answer is:
tale
'story that may be tall' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for tale that I've seen before include "Yarn or story" , "Story; lie" , "A story, perhaps out of school" , "See 12" , "'Story, narrative (4)'" .)