Partly spoiled, not worth considering (6)
I believe the answer is:
paltry
'not worth considering' is the definition.
(paltry means insignificant or small)
'partly spoiled' is the wordplay.
'spoiled' indicates anagramming the letters.
'partly' is an anagram of 'PALTRY'.
(Other definitions for paltry that I've seen before include "Trival, Inconsequential" , "Mean - trifling" , "Petty - worthless" , "Trivial, comtemptible" , "Derisory" .)