Designer needing skill to incorporate hectic working (9)
I believe the answer is:
architect
'designer' is the definition.
('architect' can be a synonym of 'designer')
'skill to incorporate hectic working' is the wordplay.
'skill' becomes 'art' (I've seen this before).
'to incorporate' is an insertion indicator.
'working' is an anagram indicator.
'hectic' anagrammed gives 'chitec'.
'art' going around 'chitec' is 'ARCHITECT'.
'needing' is the link.
(Other definitions for architect that I've seen before include "Author" , "Designer of buildings" , "professional" , "Building designer" , "Perhaps Scott" .)