German lad looking back and forth? (4)

I believe the answer is:

deed

'looking back and forth?' is the definition.

'german lad' is the wordplay.
'german' becomes 'de' (language code).
'lad' becomes 'ed'.
'de'+'ed'='DEED'

(Other definitions for deed that I've seen before include "Feat" , "documentary evidence" , "Act - exploit - legal document" , "Document showing ownership" , "Action - legal document" .)

I've seen this clue in The Everyman puzzle in The Observer.

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