Press release on individual is lying (5)
I believe the answer is:
prone
'is lying' is the definition.
(I've seen this before)
'press release on individual' is the wordplay.
'press release' becomes 'pr' (public relations).
'on' means one lot of letters go next to another.
'individual' becomes 'one' (an individual is one person).
'pr'+'one'='PRONE'
(Other definitions for prone that I've seen before include "Lying face downwards" , "Liable (to suffer) - lying down" , "Lying face down - inclined" , "Lying face downward" , "Lying face down or likely to do something" .)