Maker of all my sandwiches put away on launch of restaurant (7)
I believe the answer is:
creator
'maker' is the definition.
(I've seen this before)
'of all my sandwiches put away on launch of restaurant' is the wordplay.
I cannot really understand how this works, but
'of' could be 'o' and 'o' is present in the answer.
'away' could be 'a' (abbreviation as used in sports fixtures) and 'a' is present in the answer.
'on' could be 're' ('on' can be mean 'with reference to') and 're' is found within the answer.
The remaining letters 'ctr' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for creator that I've seen before include "The Almighty" , "Someone who makes something" , "Person who makes or invents things" , "Originator - God" , "Inventor" .)