Clue: Neo in time left old Penny for Beryl (7)
Answer: EMERALD
Explanation: Neo in time left old Penny for Beryl (7) 
E(ME)RA (Neo, ie the setter, therefore ME, in ERA (time)) L(left) D (old penny). (*I don't like using capitalized names as definitions unless they are the first word in a sentence, but others don't mind it*)