Crossword Clue:

A thing that is inserted in particular

AnswerCrossword Clue
INAPTTo sleep in that thing is not suitable (5)
FARFAR"It is a ... better thing that I do . . . "
IDO"It is a far, far better thing that ... . . . "
RINGOFFIRECountry standard that begins "Love is a burning thing"
ECCLESBk. that declares "To every thing there is a season"
CITEDWord that becomes its own synonym when RED is inserted between its first two letters