1a, suit work in retail or in glazing T???????G
20a, brain cell exercised to inspire bit of it B?????????
24a, minor injury cover E??????????
27a, back clocked fool with European cup ????????E
Missed your post Cine, eating. Allow me to parse for onlookers.
1a Tailoring reTAIL OR IN Glazing
20a Brilliance Anag brain cell +I(nspire)
20a Demitasse Def French half cup. clocked=timed backwards+ Ass (fool) + E(uropean) Demit Ass E