One’s press release will include line of questionable delicacy (8)
I believe the answer is:
improper
'one's press release will include line of questionable delicacy' is the definition.
I can't judge whether this defines the answer.
'one's press release will include line' is the wordplay.
'one's' becomes 'I'm' ('one is' is a formal way of saying 'I am').
'press release' becomes 'pr' (public relations).
'will include' is an insertion indicator.
'line' becomes 'rope' (line can mean a piece of rope).
'pr' enclosing 'rope' is 'proper'.
'im'+'proper'='IMPROPER'
Can you help me to learn more?
(Other definitions for improper that I've seen before include "So it may appear a fraction" , "Unseemly; (fraction) more than one" , "vulgar" , "Inappropriate" , "Not decorous or seemly" .)