Large and neat (4)
I believe the answer is:
tidy
This clue is a double definition.
'large' is the first definition.
(I've seen this before)
'neat' is the second definition.
(synonyms)
'and' is the link.
(Other definitions for tidy that I've seen before include "Clear up" , "generous" , "Set in order" , "Systematic; substantial" , "Neat and trim" .)