Provoke tense scaffolder? (7)

I believe the answer is:

trigger

'provoke' is the definition.

'tense scaffolder?' is the wordplay.
'tense' becomes 't' (abbreviation used in many dictionaries).
'scaffolder?' becomes 'rigger' (I've seen this before).
't'+'rigger'='TRIGGER'

(Other definitions for trigger that I've seen before include "Gun firing device" , "make things happen" , "Releasing device" , "prompt" , "Part of gun" .)

I've seen this clue in The Telegraph.

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