Indeed. You need a clone scanner and an on hotlink event smile

Code:
on ^*:HOTLINK:*:#: {

  ; set a comma separated string of all nick prefixes to remove these chars in the 
  ; hotlink evaluation (that is: hotlink will also trigger when hovering over pnicks)

  var %nr = 1, %prefix
  while ($mid($prefix,%nr,1)) { var %prefix = $addtok(%prefix,$v1,44) | inc %nr }

  ; if the mouse hovers over a nick or pnick (thus the prefix thing above), 
  ; make it a hotlink that executes the clonescan for that nick
  ; you might change/remove that prefix thing, 
  ; and/or add a custom remove string, 
  ; e.g. all chars that cannot be part of a nick.
  ; some regsub for this removal would be nice, too :)

  if ($remove($1, [ %prefix ,<,> ] ) ison $chan) { clonescanwindow $v1 $chan }

  halt
}

; the clonescan-and-show alias
alias -l clonescanwindow {

  ; make window or switch name of window
  var %w = $+(@clonecheck,$chr(160),$2)
  $iif(($window($+(@clonecheck,$chr(160),*),1)),renwin $v1 %w,window -doCk0w0 +L %w -1 -1 280 55)

  ; clear window content
  clear %w

  ; no clones
  if ($ialchan($+(*!*@,$ial($1).host),$2,0) == 1) { aline 9 %w $chr(2) no clones $+ $chr(15) of $1 }

  ; clones
  else { 
    var %c = $calc($v1 -1)
    aline 4 %w $chr(2) %c $iif((%c == 1),clone,clones) $+ $chr(15) of $1
  }

}

; menu definition to close the clonecheck-window
menu @clonecheck* {
  close window "clonecheck" : window -c $active
}

Please note that all "hotlink scripts" make comparatively heavy use of your system ressources smile