Valentine's Day card signoff (and a hint to this puzzle's theme)

Question:

Answer:

XOXOX

Length:

Similar Crossword Questions:

Gift card phrase, a homophonic hint to the puzzle's theme
Classic name in retail clothing ... or a hint to this puzzle's theme
"Dog the Bounty Hunter" network, and a hint to the theme in this puzzle's four longest answers
Generally good advice, and a hint to this puzzle's theme
Baseball ... with a hint to this puzzle's theme
Ralph Kramden catchphrase on old TV ... and a hint to this puzzle's theme
Nickname for a team from Miami, and an aural hint to the theme of this puzzle
Uncredited actors, and a hint to this puzzle's theme
Gain a monopoly, and a hint to this puzzle's theme and its location
Stranded at the ski lodge, perhaps, and a hint to this puzzle's hidden theme
Press time (and a hint to this puzzle's theme)
Schoolyard retort, and hint to this puzzle's theme
Third baseman's domain, and a hint to this puzzle's theme
Matchmaker, and a hint to this puzzle's theme
Backside ... or a hint to the puzzle theme
Mall map phrase, and a homophonic hint to this puzzle's theme
1961 #1 hit for Dion, and a literal hint to this puzzle's hidden theme
Classic breakup line, and a hint to the formation of this puzzle's theme answers
How long it takes to get something back (and a hint to this puzzle's theme)
Bartender's denial, and a hint to this puzzle's theme
Choice for a dog, as well as a hint to this puzzle's theme
Annual English sports event that begins today, and a hint to this puzzle's theme
Subject of the Final Jeopardy! question that knocked out Ken Jennings after a record 74 wins ... or a hint to this puzzle's theme
Best Picture of 1958, and a hint to this puzzle's theme
Start of a proverb about consequences ... and a hint to this puzzle's theme