Such chips as you can get for £1 in assorted coins (7)
I believe the answer is:
silicon
'such chips as you can get' is the definition.
I can't judge whether this defines the answer.
'ps1 in assorted coins' is the wordplay.
'psl' becomes 'li' (I can't explain this - if you can you should believe this answer much more).
'in' indicates putting letters inside.
'assorted' indicates anagramming the letters.
'coins' anagrammed gives 'sicon'.
'li' inserted into 'sicon' is 'SILICON'.
'for' is the link.
Can you help me to learn more?
(Other definitions for silicon that I've seen before include "Semi-conducting non-metal" , "Element used in making electronic chips" , "Element in sand, quartz" , "Non-metallic element, symbol Si" , "Element found in chips?" .)