Paper supply on time (6)
I believe the answer is:
tissue
'paper' is the definition.
(tissue paper is a kind of paper)
'supply on time' is the wordplay.
I cannot quite understand how this works, but
'supply' could be 'issue' (issue is a kind of supply) and 'issue' is found in the answer.
'time' could be 't' and 't' is located in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for tissue that I've seen before include "Thin fabric" , "Soft thin paper in layers" , "A fabrication (of lies)" , "Maybe lies" , "Cells sharing a function" .)