Started to grin, with idea developing (10)

1A — Started to grin, with idea developing (10) — ORIGINATED

• Definition
  Definition found: 'Started' — The definition of the answer is 'Started'. Show hint
• Indicator
  Indicator found: 'developing' Show hint
• Operation
  'developing' signals a anagram operation
• Fodder
  Fodder: 'to grin, idea'
• Synonym
  Synonyms spotted: 'to' → TO Show hint
• Assembly
  TO + GRIN + IDEA > TOGRINIDEA = ORIGINATED

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