Value from Top Shop in roadside area (3,5,5,2)

I believe the answer is:

lay great store by

'value' is the definition.
(to lay great store by something is to value it)

'top shop in roadside area' is the wordplay.
'top' becomes 'great' (both can mean excellent).
'shop' becomes 'store' (synonyms).
'in' is an insertion indicator.
'roadside area' becomes 'lay-by' (area by the side of a road).
'great'+'store'='greatstore'
'greatstore' inserted within 'layby' is 'LAY GREAT STORE BY'.

'from' acts as a link.

I've seen this clue in The Guardian.

Want a hint initially instead of a full solution? Install my app