Answer: stic

AnswerCrossword Clue
STIC

Bic ... (pen brand)

STIC

Bic Clic -- (pen brand)

STIC

Glue -- (adhesive-in-a-tube brand)

STIC
Clic (Bic pen brand) --
STIC
Bic Clic --
STICGlue -- (adhesive brand)
STICBic Round -- (pen brand)
STICBic Clic ... (writing brand)