Icons strip naked: start to request top of bottom is covered (7)

'icons' is the definition.
(set of icons on a computer)

'strip naked start to request top of bottom is covered' is the wordplay.
I cannot really see how this works, but
'strip' could be 'bar' (I've seen this in other clues) and 'bar' is present in the answer.
'request' could be 'ask' (to ask is to request something) and 'ask' is found within the answer.
A single letter 't' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...