Success, being given good suggestion for part of aircraft design (4,3)
I believe the answer is:
wing tip
'part of aircraft design' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'success being given good suggestion' is the wordplay.
'success' becomes 'win' (I've seen this in another clue).
'being given' says to put letters next to each other.
'good' becomes 'g' (abbreviation).
'suggestion' becomes 'tip' (tip is a kind of suggestion).
'win'+'g'+'tip'='WING TIP'
'for' is the link.
Can you help me to learn more?
(Other definitions for wing tip that I've seen before include "shoe" , "Extreme point of aircraft" .)