Answer:

yawing

Answer	Crossword Clue
YAWING	Zigging or zagging
YAWING	Spacecraft problem
YAWING	Deviating, as a storm-swept ship

YAWING	Deviating from course
YAWING	Ship's unsteady action
YAWING	Going off course
YAWING	Slightly off course
YAWING	Turning about the vertical
YAWING	Deviating, as a rocket
YAWING	Off course, in a way
YAWING	Deviating off course

YAWING	Deviating erratically from a set course