Encroachment, Interference
This page is the CodyCross answer for the clue below from Department Store, Group 519, Puzzle 1 (Special Offers).
Question is: Encroachment, Interference
and the answer is: INTRUSION
Word Meaning:
INTRUSION — The forcible inclusion or entry of an external group or individual; the act of intruding.
Definitions from Wiktionary.