21 ac Source of conference with apartridge (4,4) ???? T?E? 44 ac Fugative puts bolt on gate finally (7) ?S?A?E? - is it escapee or escaper? 56ac Drinks knocked back in a fit of temper (5) S?R?P
16 ac ROLF HARRIS (from his alleged catchphrase when painting live on TV)
21ac PEAR TREE
44ac ESCAPEE (escape + final e in 'gate')
56ac STROP ('ports' backwards)
28d HAMSTER (ham=food + anag (cure) of 'rest')
Nothing alleged about Rolf's 'Can you see what it is yet ?' - in one of our favourite childhood TV programmes he would paint on an enormous canvas using decorator's brushes and tins of paint, producing amazing pictiures in 5 to 10 minutes !