Clue: Fastidious Everyman given time: 'silly not to deliver' (10)
Answer: METICULOUS
Explanation: Definition: Fastidious
A charade of ME ('Everyman') plus T ('time') plus [rid]ICULOUS ('silly') minus RID ('not to deliver'; 'deliver' as in "Deliver us from evil", but the 'to' does not sit happily here).