WIGGLE

There seems to be a diagonal streak of letters in alphabetical order working their way starting from the last A in DRAMA and going left to the second B in RABBI then to C in the third letter of cycle, then to the D in the second letter of IDLED and then bouncing to the E in the second letter of TENSE then to the F in their third letter of AFFIX which means that the next w...

WIGGLE

There seems to be a diagonal streak of letters in alphabetical order working their way starting from the last A in DRAMA and going left to the second B in RABBI then to C in the third letter of cycle, then to the D in the second letter of IDLED and then bouncing to the E in the second letter of TENSE then to the F in their third letter of AFFIX which means that the next word needs a G in the third letter.

The only word which fits this is WIGGLE

The first word has 2 A's, the 2nd 2 B's, the 3rd 2 C's, the 4th 2 D's, the 5th 2 E's, the 6th 2 F's, so the 7th must have 2 G's.