1. 
   Clear-headed
   Clear'-head`ed (klēr'hĕd`ĕd) adjective Having a clear understanding; quick of perception; intelligent. 'He was laborious and clear- headed .' Macaulay. -- Clear'-head`ed*ness , noun
   Found op http://www.encyclo.co.uk/webster/C/89
   
   
2. 
   Clear-headed
   • (a.) Having a clear understanding; quick of perception; intelligent.
   Found op http://thinkexist.com/dictionary/meaning/clear-headed/
   
   
3. 
   clearheaded
   [adj] - not mentally confused
   Found op http://www.webdictionary.co.uk/definition.php?query=clearheaded
   
   
4. 
   clearheaded
   clear-thinking adjective not mentally confused; able to think clearly and act intelligently
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=clearheaded
   
   
5. 
   clearheaded
   1) Clear 2) Clear-thinking 3) Lucid 4) Not mentally confused 5) Sober 6) Unclouded
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/clearheaded/1
   
   

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