Times puzzle on Saturday has got filled in (4)
I believe the answer is:
eons
'times' is the definition.
(eon is a kind of time)
'puzzle on saturday has got filled in' is the wordplay.
'EONS' is hidden in amongst the letters.
However, I'm not sure how the hidden word is indicated.
Can you help me to learn more?
(Other definitions for eons that I've seen before include "Divisions of geological time" , "Vast ages" , "Years and years" , "Divisions of archaeological time" , "Nose (anag)" .)