Subtle manoeuvring on railway that’s windy (8)
I believe the answer is:
Here is my best explanation:
'windy' is the definition.
(I've seen this before)
'subtle manoeuvring on railway' is the subsidiary indication.
'manoeuvring' indicates anagramming the letters.
'on' is a charade indicator (letters next to each other).
'railway' becomes 'ry'.
'subtle' is an anagram of 'bluste'.
'thats' is the link.
(Other definitions for blustery that I've seen before include "Somewhat windy", "Sly brute (anag)", "Swaggering", "(Of weather) windy and stormy", "Windy", "Like wild weather", "bullying", "Talking loudly and aggressively to little effect", "Blowing strongly but unevenly" and "Squally".)