Run out of pictures to put up (5)
I believe the answer is:
extra
'run' is the definition.
(cricket run)
'out of pictures to put up' is the wordplay.
'out of' becomes 'ex'.
'pictures' becomes 'art'.
'to put up' says the letters should be written backwards.
'art' back-to-front is 'tra'.
'ex'+'tra'='EXTRA'
(Other definitions for extra that I've seen before include "fortuitous run" , "Minor actor in crowd scene" , "unused" , "Auxiliary" , "Superfluous" .)