Stay as you are after falling on the pitch? (5)
I believe the answer is:
tarry
'stay' is the definition.
(I've seen this before)
'falling on the pitch?' is the wordplay.
'falling' becomes 'ry' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'on' is a charade indicator (letters next to each other).
'the pitch?' becomes 'tar' ('tar' can be a synonym of 'pitch').
'ry' put after 'tar' is 'TARRY'.
'as you are after' acts as a link.
This may not be right. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for tarry that I've seen before include "Drag one's feet" , "Delay leaving" , "perhaps not to split" , "Wait" , "Lag" .)