Abducted by alien in ET, I estimate for ten years (8)
I believe the answer is:
nineties
'ten years' is the definition.
Although both the answer and definition are plural nouns, I cannot see how one could define the other.
'abducted by alien in et i estimate' is the wordplay.
'NINETIES' is hidden in amongst the letters.
But, I'm unsure how this is indicated.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for nineties that I've seen before include "many old people are in" , "Last decade of century" , "Time" , "19th century's "naughty" decade" , "Previous decade" .)