Append (3)
'append' is the definition.
(synonyms)
This is all the clue.
(Other definitions for add that I've seen before include "problem for hyperactive children" , "Say as a further remark" , "Augment" , "Reckon" , "Put together (numbers)" .)
'append' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for attach that I've seen before include "Document carriers" , "Join to something else" , "Unite?" , "Add on to, couple" , "Tag on" .)