Instruction to supply goods called for by the Speaker? (5)
I believe the answer is:
order
I believe this clue is a triple definition!
'instruction to supply' is the first definition.
(as in ordering from a shop)
'goods' is the second definition.
(I have seen 'Reserved goods' mean 'order' so perhaps 'goods' could also mean 'order')
'called for by the speaker?' is the third definition.
(the House of Commons Speaker often calls for order)
(Other definitions for order that I've seen before include "architectural style" , "Fettle - kilter" , "Call" , "Family - group - arrangement" , "demand" .)