Intrigue as Mr Big regularly seen on screen (5)
I believe the answer is:
rivet
'intrigue' is the definition.
The answer and definition can be both related to thinking as well as being verbs in their base form.
Perhaps they are linked in a way I don't understand?
'mr big regularly seen on screen' is the wordplay.
'regularly seen' indicates alternate letters.
'on' says to put letters next to each other.
'screen' becomes 'vet' (screen can mean to check or vet).
'mr'+'big'='mrbig'
The alternating letters of 'mrbig' are 'ri'.
'ri'+'vet'='RIVET'
'as' is the link.
Can you help me to learn more?
(Other definitions for rivet that I've seen before include "Fasten with metal pins - enthral" , "Type of fastening" , "fix" , "Pin for joining metal" , "join securely" .)