Possible Clues:

• He won't be late, travelling by rail and road after the end of June
• Proverbial worm catcher
• Worm-catching satellite
• It gets the worm
• Lark?
• Possible lark ending in coarse ribaldry, -unfortunately
• Satellite's description of Archaeopteryx?
• 'The . . . . . . . . . catches the worm '
• Chorus singer making good time?
• Advanced hobby, say, producing communications satellite!