Managed to get straight in line (5)
I believe the answer is:
ruled
'managed' is the definition.
The definition and answer can be both to do with social activities as well as being past participle verbs.
Perhaps you can see an association between them that I can't see?
'get straight in line' is the wordplay.
'get straight' becomes 'ul' (I can't explain this - if you can you should give a lot more credence to this answer).
'in' indicates putting letters inside.
'line' becomes 'red line' (red line is a kind of line).
'ul' going within 'red' is 'RULED'.
'to' is the link.
Can you help me to learn more?
(Other definitions for ruled that I've seen before include "Governed - with lines" , "Held the reins" , "(Of writing paper) having printed lines" , "Reigned or ordered" , "Governed, used one's authority" .)