High and low will be present, after really going in opposite directions (10)
I believe the answer is:
everywhere
'high and low' is the definition.
(I've seen this before)
'present after really going in opposite directions' is the wordplay.
'present' becomes 'here' ('here' can be similar in meaning to 'present'**).
'after' says to put letters next to each other.
'really' becomes 'very' (I've seen this before).
'going in' is an insertion indicator.
'opposite directions' becomes 'ew' (opposite compass points).
'very' put within 'ew' is 'everyw'.
'here' put after 'everyw' is 'EVERYWHERE'.
'will be' is the link.
(Other definitions for everywhere that I've seen before include "commonplace" , "common" , "rife" , "In all places" , "All over the place" .)