Crossword Genius

A label fixed to weapon immediately (2,1,6)

Ross

I believe the answer is:

at a glance

'immediately' is the definition.
(I've seen this before)

'a label fixed to weapon' is the wordplay.
'label' becomes 'tag' (tag is a kind of label).
'fixed to' means one lot of letters go next to another.
'weapon' becomes 'lance' (lance is a kind of weapon).
'a'+'tag'+'lance'='AT A GLANCE'

(Other definitions for at a glance that I've seen before include "immediately" , "With just a look" .)

I've seen this clue in The Telegraph.
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