Look for German spear (6)
I believe the answer is:
glance
'look' is the definition.
(glance is a kind of look)
'german spear' is the wordplay.
'german' becomes 'g' (abbreviation).
'spear' becomes 'lance' ('lance' can be a synonym of 'spear').
'g'+'lance'='GLANCE'
'for' is the link.
(Other definitions for glance that I've seen before include "Take a brief or hurried look" , "fly off" , "Butcher" , "Look briefly or bounce off" , "Momentary look" .)