Dic: Down-to-earth

• sensible or practical ... Collins Essential
• 2(a) Not pretentious or affected; straightforward.
  2(b) Not overly ornate; simple in style .... Am-Heritage

• down-to-earth people or ideas are practical and work well
  
  David's very arty and a bit of a dreamer - Ruth's much more down-to-earth.
  I like her down-to-earth approach to problem-solving. ... Cambridge Idioms

....... http://idioms.thefreedictionary.com/down-to-earth