Answer: acog

AnswerCrossword Clue
ACOG

Slip ..: err

ACOG

Slip ... (make an error)

ACOG

Slip ... (blunder)

ACOG
Slip ... (make an error).
ACOG
Slipped ....
ACOGSlip ....
ACOGSlip . . . (make an error).
ACOGSlips ...
ACOGSlip ...
ACOGSlip ... (err)
ACOGSlip -- (err)
ACOGSlip -- (blunder)
ACOGSlip -- (mess up)
ACOGSlip ..... (goof up)