Velocity in Tyneside transport system makes us anxious (5)
I believe the answer is:
nervy
'anxious' is the definition.
(I've seen this before)
'velocity in tyneside transport' is the wordplay.
'velocity' becomes 'v' (scientific abbreviation).
'in' indicates putting letters inside.
'tyneside' becomes 'NE' (area in North East of England).
'transport' becomes 'ry' (abbreviation for railway).
'ne'+'ry'='nery'
'v' going into 'nery' is 'NERVY'.
'system makes us' acts as a link.
This may not be correct. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for nervy that I've seen before include "Fidgety" , "Highly strung" , "Jumpily excited" , "Highly-strung" , "Easily agitated, tense" .)