Alps improve with new maps (5)
I believe the answer is:
plans
'maps' is the definition.
(I've seen this before)
'alps improve with new' is the wordplay.
'improve with' is an anagram indicator.
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'alps' with its letters mixed up with 'n' gives 'PLANS'.
(Other definitions for plans that I've seen before include "Intentions or drawings" , "Schemes; diagrams" , "Stratagems" , "maps" , "Aims" .)