Consider fewer anyway (10)
I believe the answer is:
regardless
'anyway' is the definition.
(I've seen this before)
'consider fewer' is the wordplay.
'consider' becomes 'regard' (synonyms).
'fewer' becomes 'less' (associated in meaning).
'regard'+'less'='REGARDLESS'
(Other definitions for regardless that I've seen before include "Indifferent - come what may" , "CARRY ON FILM" , "in spite of everything" , "Whatever happens" , "Anyway" .)