Moment pastor reconfigured defunct browser? (11)
I believe the answer is:
triceratops
'defunct browser?' is the definition.
(extinct browsing animal)
'moment pastor reconfigured' is the wordplay.
'moment' becomes 'trice' (I've seen this before).
'reconfigured' is an anagram indicator.
'pastor' anagrammed gives 'ratops'.
'trice'+'ratops'='TRICERATOPS'
(Other definitions for triceratops that I've seen before include "Three-horned dinosaur" , "Horned dinosaur" , "Cretaceous herbivore" , "Old creature" , "Extinct reptile" .)