German gets terribly fit for the present (4)
I believe the answer is:
gift
'the present' is the definition.
(I've seen this before)
'german gets terribly fit' is the wordplay.
'german' becomes 'g' (abbreviation).
'gets' means one lot of letters goes inside another.
'terribly' indicates anagramming the letters.
'fit' anagrammed gives 'ift'.
'g' going within 'ift' is 'GIFT'.
'for' acts as a link.
(Other definitions for gift that I've seen before include "Endowment" , "Natural talent" , "A natural attribute" , "Give away" , "Donation" .)