Answer:

meddling

Answer	Crossword Clue
MEDDLING	Intrusive activity
MEDDLING	Interfering behavior
MEDDLING	Kibitzer's specialty

MEDDLING	Interference
MEDDLING	Kibitzer's activity
MEDDLING	Sticking one's nose in
MEDDLING	Having a finger in every pie

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.