Lane Reg arranged to make bigger (7)
I believe the answer is:
enlarge
'make bigger' is the definition.
(I've seen this in another clue)
'lane reg arranged' is the wordplay.
'arranged' indicates an anagram.
'lane'+'reg'='lanereg'
'lanereg' anagrammed gives 'ENLARGE'.
'to' is the link.
(Other definitions for enlarge that I've seen before include "Make greater" , "Wax" , "Make bigger, say photo" , "Increase in size" , "swell?" .)