Prance Harry blog probed by American (6)
I believe the answer is:
gambol
'prance' is the definition.
(thesaurus)
'harry blog probed by american' is the wordplay.
'harry' is an anagram indicator (harry can mean to attack or spoil).
'probed by' means one lot of letters goes inside another (probe can mean to poke into something).
'american' becomes 'Am' (abbreviation in some contexts).
'blog' with letters rearranged gives 'gbol'.
'gbol' placed around 'am' is 'GAMBOL'.
(Other definitions for gambol that I've seen before include "Prance; sounds like bet" , "Frisk and play" , "Frisk about and bet, by the sound of it" , "Spring" , "Skip" .)