Show on here (9)
I believe the answer is:
represent
'show' is the definition.
(thesaurus)
'on here' is the wordplay.
'on' becomes 're' ('on' can be mean 'with reference to').
'here' becomes 'present' ('present' can be similar in meaning to 'here').
're'+'present'='REPRESENT'
(Other definitions for represent that I've seen before include "declare" , "Picture" , "Illustrate" , "Explain" , "Play the part" .)