Possible Clues:

• Intruder does worry about having entered home before
• Stand in the way of one getting rent-free accommodation
• Intrude or pry
• Ultimately got free rein, mistakenly, to meddle
• The Apprentice is not finished getting both sides to feature or get involved in someone else's business
• Poke one's nose into local, popular swinger's aid containing R?ntgen, iron and lead replacement
• Hamper holidaymaker finally ensconced in Tenerife resort
• Barge in Bury free to move around
• Tree fern damaged after I get in the way
• Check if given free rein, unfortunately tense inside