Piping filmed for expert (7)
I believe the answer is:
hotshot
'for expert' is the definition.
(hotshot is a kind of expert)
'piping filmed' is the wordplay.
'piping' becomes 'hot' (I've seen this in other clues).
'filmed' becomes 'shot' ('shoot' can be a synonym of 'film').
'hot'+'shot'='HOTSHOT'
(Other definitions for hotshot that I've seen before include "Expert" , "Top player" , "successful type?" , "ace" , "Showily successful person" .)