Related Clues:

• Word with tube or child
• Type of circle or tube
• Manuscript
• Kind of circle
• Private, as thoughts
• City or child preceder
• Obscured
• Not obvious, as feelings
• Type of tube
• __ tube (tire part)
• Word before city or workings
• Word with tube or ear
• __ sanctum
• Felt but not seen
• Word before city or circle