Possible Clues:

• Mother's fancy man said Saturday's crossword is gibberish
• Quiet lad's unfinished puzzle - it's baffling
• Confusing language, as Mark and Jack have different bosses
• Silent and unpleasant smell on elephant god in Africa
• Jargon saying nothing very substantial about British cipher
• Tight-lipped old boy rejected crossword that's gobbledegook
• Gibberish, nonsense
• Nonsense
• Mother gets best offer on flight ¿ try making sense of that
• Piffle