Spouts tripe about eclipse (8)
I believe the answer is:
outstrip
'eclipse' is the definition.
(thesaurus)
'spouts tripe about' is the wordplay.
'about' indicates the answer is hidden within the clue.
'OUTSTRIP' is hidden in the letters of 'spouts tripe'.
(Other definitions for outstrip that I've seen before include "As to purist, surpass or run faster" , "Exceed in performance" , "Perform better than" , "Surpass, do better than" , "Surpass, overtake" .)