Stories Dan concocted, displaying skill (10)
I believe the answer is:
adroitness
'skill' is the definition.
(I've seen this in another clue)
'stories dan concocted' is the wordplay.
'concocted' is an anagram indicator.
'stories'+'dan'='storiesdan'
'storiesdan' is an anagram of 'ADROITNESS'.
'displaying' acts as a link.
(Other definitions for adroitness that I've seen before include "finesse" , "Skill" .)