You find being in the stand hard (4)
I believe the answer is:
thee
'you' is the definition.
(I've seen this in other clues)
'being in the stand hard' is the wordplay.
'being in the' means one lot of letters goes inside another.
'stand' becomes 'tee' (I've seen this before).
'hard' becomes 'h'.
'tee' enclosing 'h' is 'THEE'.
'find' is the link.
(Other definitions for thee that I've seen before include "Old objective second person singular" , "'U'" , "Quaker 'you'" , "You in the olden days" , "You (arch.)" .)