Time to publish paper (6)
I believe the answer is:
tissue
'paper' is the definition.
(tissue paper is a kind of paper)
'time to publish' is the wordplay.
'time' becomes 't'.
'to publish' becomes 'issue' ('issue' can be a synonym of 'publish').
't'+'issue'='TISSUE'
(Other definitions for tissue that I've seen before include "Bodily matter" , "Fine soft paper" , "Maybe lies" , "Thin fabric" , "load of lies?" .)