Duck approaching lake given peeled fruit (5)
I believe the answer is:
olive
'fruit' is the definition.
(I've seen this before)
'duck approaching lake given peeled' is the wordplay.
'duck' becomes 'o'.
'approaching' means one lot of letters go next to another.
'lake' becomes 'l'.
'peeled' says to take the centre.
The middle letters of 'given' are 'ive'.
'o'+'l'+'ive'='OLIVE'
(Other definitions for olive that I've seen before include "Fruit also used to make oil" , "Tree - shade of green" , "yellowish green" , "Greyish-green; fruit" , "Fruit giving oil" .)