Struggle with mobile blocking half of screen icon? (9)

I believe the answer is:

scrimmage

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'struggle' is the definition.
(I have seen 'Confused struggle' mean 'scrimmage' so perhaps 'struggle' could also mean 'scrimmage')

'with mobile blocking half of screen icon?' is the wordplay.
'with' is an insertion indicator.
'mobile blocking' becomes 'm' (I am not sure about this - if you are sure you should believe this answer much more).
'half of' indicates taking half.
'icon?' becomes 'image' ('image' can be a synonym of 'icon').
'screen' with half the letters taken is 'scr'.
'scr'+'image'='scrimage'
'm' placed within 'scrimage' is 'SCRIMMAGE'.

Can you help me to learn more?

(Other definitions for scrimmage that I've seen before include "Disorderly struggle (on sports field)" , "Confused struggle" , "Confused tussle" , "Noisy brawl or struggle" , "messy struggle" .)

I've seen this clue in The Independent.

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