Enter a clue or pattern or both:
The ClueIn a trustworthy way (8 letter answer)
NotesThe answer RELIABLY is so rare that it appears less than once every 2500 puzzles.
Related CluesIn trustworthy fashion
How trustworthy people act
DefinitionRELIABLY as an adverb:
1. (faithfully, dependably, reliably) = in a faithful manner; "it always came on, faithfully, like the radio"