Iceman slammed in picture-house (6)
I believe the answer is:
cinema
'picture-house' is the definition.
(I've seen this before)
'iceman slammed' is the wordplay.
'slammed' is an anagram indicator.
'iceman' is an anagram of 'CINEMA'.
'in' acts as a link.
(Other definitions for cinema that I've seen before include "Silver screen" , "Modern art" , "Film industry" , "Picture-house 96)" , "Where films are shown" .)