Possible Clues:

• Ring Tina (anag.)
• Idiot ultimately falling for some practice
• Initially tea-pouring requires tuition
• Working out time for the weather forecast
• Time showering, perhaps for exercises
• Instruction leaflet ultimately wet
• and 19 Down: One on Salisbury Plain, for example, has curious giant ring encircling
• Vocational education
• Showering needed maybe after end of that?
• Picking up ideas in time for the weather forecast